16401474 has 16 divisors (see below), whose sum is σ = 36447840. Its totient is φ = 5467140.

The previous prime is 16401467. The next prime is 16401487. The reversal of 16401474 is 47410461.

16401474 is a `hidden beast` number, since 1 + 640 + 14 + 7 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151812 + ... + 151919.

It is an arithmetic number, because the mean of its divisors is an integer number (2277990).

Almost surely, 2^16401474 is an apocalyptic number.

16401474 is an abundant number, since it is smaller than the sum of its proper divisors (20046366).

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

16401474 is a wasteful number, since it uses less digits than its factorization.

16401474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303742 (or 303736 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 16401474 is about 4049.8733313525. The cubic root of 16401474 is about 254.0744300031.

The spelling of 16401474 in words is "sixteen million, four hundred one thousand, four hundred seventy-four".