1120635540 has 192 divisors, whose sum is σ = 3577728000. Its totient is φ = 291133440.

The previous prime is 1120635533. The next prime is 1120635611. The reversal of 1120635540 is 455360211.

1120635540 is a `hidden beast` number, since 1 + 1 + 20 + 635 + 5 + 4 + 0 = 666.

It is a super-2 number, since 2×1120635540² = 2511648027022183200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4649820 + ... + 4650060.

It is an arithmetic number, because the mean of its divisors is an integer number (18634000).

Almost surely, 2^1120635540 is an apocalyptic number.

1120635540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1120635540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1788864000).

1120635540 is an abundant number, since it is smaller than the sum of its proper divisors (2457092460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1120635540 is a wasteful number, since it uses less digits than its factorization.

1120635540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1120635540 is about 33475.8949096212. The cubic root of 1120635540 is about 1038.6952140428.

Adding to 1120635540 its reverse (455360211), we get a palindrome (1575995751).

The spelling of 1120635540 in words is "one billion, one hundred twenty million, six hundred thirty-five thousand, five hundred forty".