16642732 has 12 divisors (see below), whose sum is σ = 29254680. Its totient is φ = 8284256.

The previous prime is 16642709. The next prime is 16642739. The reversal of 16642732 is 23724661.

It is a junction number, because it is equal to n+sod(n) for n = 16642694 and 16642703.

It is not an unprimeable number, because it can be changed into a prime (16642739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8257 + ... + 10072.

It is an arithmetic number, because the mean of its divisors is an integer number (2437890).

Almost surely, 2^16642732 is an apocalyptic number.

It is an amenable number.

16642732 is a deficient number, since it is larger than the sum of its proper divisors (12611948).

16642732 is a wasteful number, since it uses less digits than its factorization.

16642732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18560 (or 18558 counting only the distinct ones).

The product of its digits is 12096, while the sum is 31.

The square root of 16642732 is about 4079.5504654312. The cubic root of 16642732 is about 255.3141431463.

The spelling of 16642732 in words is "sixteen million, six hundred forty-two thousand, seven hundred thirty-two".