1120631400 has 576 divisors, whose sum is σ = 4704460800. Its totient is φ = 233280000.

The previous prime is 1120631377. The next prime is 1120631401. The reversal of 1120631400 is 41360211.

It is a happy number.

1120631400 is a `hidden beast` number, since 11 + 20 + 631 + 4 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1120631401) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 7421325 + ... + 7421475.

Almost surely, 2^1120631400 is an apocalyptic number.

1120631400 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 1120631400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2352230400).

1120631400 is an abundant number, since it is smaller than the sum of its proper divisors (3583829400).

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

1120631400 is a wasteful number, since it uses less digits than its factorization.

1120631400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1120631400 is about 33475.8330740252. The cubic root of 1120631400 is about 1038.6939349462.

Adding to 1120631400 its reverse (41360211), we get a palindrome (1161991611).

The spelling of 1120631400 in words is "one billion, one hundred twenty million, six hundred thirty-one thousand, four hundred".