16674440 has 32 divisors (see below), whose sum is σ = 37800000. Its totient is φ = 6619584.

The previous prime is 16674431. The next prime is 16674443. The reversal of 16674440 is 4447661.

It is a junction number, because it is equal to n+sod(n) for n = 16674397 and 16674406.

It is not an unprimeable number, because it can be changed into a prime (16674443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4061 + ... + 7059.

It is an arithmetic number, because the mean of its divisors is an integer number (1181250).

Almost surely, 2^16674440 is an apocalyptic number.

16674440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16674440 is an abundant number, since it is smaller than the sum of its proper divisors (21125560).

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

16674440 is a wasteful number, since it uses less digits than its factorization.

16674440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3149 (or 3145 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 16674440 is about 4083.4348286706. The cubic root of 16674440 is about 255.4761831499.

The spelling of 16674440 in words is "sixteen million, six hundred seventy-four thousand, four hundred forty".