1115450400 has 72 divisors (see below), whose sum is σ = 3630798864. Its totient is φ = 297452800.

The previous prime is 1115450381. The next prime is 1115450429. The reversal of 1115450400 is 40545111.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229986 + ... + 234785.

It is an arithmetic number, because the mean of its divisors is an integer number (50427762).

Almost surely, 2^1115450400 is an apocalyptic number.

1115450400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1115450400 is an abundant number, since it is smaller than the sum of its proper divisors (2515348464).

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

1115450400 is a wasteful number, since it uses less digits than its factorization.

1115450400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464794 (or 464781 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 1115450400 is about 33398.3592411364. The cubic root of 1115450400 is about 1037.0907351761.

Adding to 1115450400 its reverse (40545111), we get a palindrome (1155995511).

The spelling of 1115450400 in words is "one billion, one hundred fifteen million, four hundred fifty thousand, four hundred".