111406456 has 16 divisors (see below), whose sum is σ = 238728240. Its totient is φ = 47745600.

The previous prime is 111406453. The next prime is 111406459. The reversal of 111406456 is 654604111.

It is an interprime number because it is at equal distance from previous prime (111406453) and next prime (111406459).

It is a super-2 number, since 2×111406456² = 24822796876959872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111406453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 994645 + ... + 994756.

It is an arithmetic number, because the mean of its divisors is an integer number (14920515).

Almost surely, 2^111406456 is an apocalyptic number.

It is an amenable number.

111406456 is an abundant number, since it is smaller than the sum of its proper divisors (127321784).

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

111406456 is a wasteful number, since it uses less digits than its factorization.

111406456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989414 (or 1989410 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 111406456 is about 10554.9256747738. The cubic root of 111406456 is about 481.1754409483.

The spelling of 111406456 in words is "one hundred eleven million, four hundred six thousand, four hundred fifty-six".