16406972 has 24 divisors (see below), whose sum is σ = 30754080. Its totient is φ = 7631360.

The previous prime is 16406963. The next prime is 16406977. The reversal of 16406972 is 27960461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16406977) 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, 4697 + ... + 7407.

It is an arithmetic number, because the mean of its divisors is an integer number (1281420).

Almost surely, 2^16406972 is an apocalyptic number.

It is an amenable number.

16406972 is a deficient number, since it is larger than the sum of its proper divisors (14347108).

16406972 is a wasteful number, since it uses less digits than its factorization.

16406972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2821 (or 2819 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 16406972 is about 4050.5520611393. The cubic root of 16406972 is about 254.1028165810.

The spelling of 16406972 in words is "sixteen million, four hundred six thousand, nine hundred seventy-two".