1115598400 has 84 divisors (see below), whose sum is σ = 3137253568. Its totient is φ = 382487040.

The previous prime is 1115598383. The next prime is 1115598401. The reversal of 1115598400 is 48955111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115598401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38604 + ... + 61003.

Almost surely, 2^1115598400 is an apocalyptic number.

1115598400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1115598400 is an abundant number, since it is smaller than the sum of its proper divisors (2021655168).

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

1115598400 is an equidigital number, since it uses as much as digits as its factorization.

1115598400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99636 (or 99621 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 34.

The square root of 1115598400 is about 33400.5748453526. The cubic root of 1115598400 is about 1037.1366008464.

The spelling of 1115598400 in words is "one billion, one hundred fifteen million, five hundred ninety-eight thousand, four hundred".