16470972 has 48 divisors (see below), whose sum is σ = 48805120. Its totient is φ = 4705776.

The previous prime is 16470959. The next prime is 16470989. The reversal of 16470972 is 27907461.

It is a happy number.

16470972 is a `hidden beast` number, since 1 + 647 + 0 + 9 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10138 + ... + 11649.

Almost surely, 2^16470972 is an apocalyptic number.

16470972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16470972 is an abundant number, since it is smaller than the sum of its proper divisors (32334148).

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

16470972 is a wasteful number, since it uses less digits than its factorization.

16470972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21807 (or 21799 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 16470972 is about 4058.4445296197. Note that the first 3 decimals coincide. The cubic root of 16470972 is about 254.4327876929.

The spelling of 16470972 in words is "sixteen million, four hundred seventy thousand, nine hundred seventy-two".