111407408 has 20 divisors (see below), whose sum is σ = 246688080. Its totient is φ = 47745984.

The previous prime is 111407369. The next prime is 111407447. The reversal of 111407408 is 804704111.

It is an interprime number because it is at equal distance from previous prime (111407369) and next prime (111407447).

It is a super-2 number, since 2×111407408² = 24823221114556928, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 497243 + ... + 497466.

It is an arithmetic number, because the mean of its divisors is an integer number (12334404).

Almost surely, 2^111407408 is an apocalyptic number.

It is an amenable number.

111407408 is an abundant number, since it is smaller than the sum of its proper divisors (135280672).

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

111407408 is an equidigital number, since it uses as much as digits as its factorization.

111407408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994724 (or 994718 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 111407408 is about 10554.9707721054. The cubic root of 111407408 is about 481.1768115383.

The spelling of 111407408 in words is "one hundred eleven million, four hundred seven thousand, four hundred eight".