16401456 has 30 divisors (see below), whose sum is σ = 45901700. Its totient is φ = 5467104.

The previous prime is 16401419. The next prime is 16401457. The reversal of 16401456 is 65410461.

16401456 is a `hidden beast` number, since 1 + 640 + 14 + 5 + 6 = 666.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (16401457) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56806 + ... + 57093.

Almost surely, 2^16401456 is an apocalyptic number.

16401456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16401456 is an abundant number, since it is smaller than the sum of its proper divisors (29500244).

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

16401456 is a wasteful number, since it uses less digits than its factorization.

16401456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113913 (or 113904 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 16401456 is about 4049.8711090601. The cubic root of 16401456 is about 254.0743370574.

The spelling of 16401456 in words is "sixteen million, four hundred one thousand, four hundred fifty-six".