1155422460 has 48 divisors (see below), whose sum is σ = 3236954112. Its totient is φ = 307944000.

The previous prime is 1155422447. The next prime is 1155422467. The reversal of 1155422460 is 642245511.

It is a super-2 number, since 2×1155422460² = 2670002122144903200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155422467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136965 + ... + 145155.

It is an arithmetic number, because the mean of its divisors is an integer number (67436544).

Almost surely, 2^1155422460 is an apocalyptic number.

1155422460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1155422460 is an abundant number, since it is smaller than the sum of its proper divisors (2081531652).

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

1155422460 is a wasteful number, since it uses less digits than its factorization.

1155422460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10554 (or 10552 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 1155422460 is about 33991.5057036313. The cubic root of 1155422460 is about 1049.3336543140. Note that the first 3 decimals are identical.

Adding to 1155422460 its reverse (642245511), we get a palindrome (1797667971).

The spelling of 1155422460 in words is "one billion, one hundred fifty-five million, four hundred twenty-two thousand, four hundred sixty".