16642492 has 12 divisors (see below), whose sum is σ = 29234520. Its totient is φ = 8289776.

The previous prime is 16642481. The next prime is 16642513. The reversal of 16642492 is 29424661.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6658 + ... + 8809.

It is an arithmetic number, because the mean of its divisors is an integer number (2436210).

Almost surely, 2^16642492 is an apocalyptic number.

It is an amenable number.

16642492 is a deficient number, since it is larger than the sum of its proper divisors (12592028).

16642492 is a wasteful number, since it uses less digits than its factorization.

16642492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15740 (or 15738 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 16642492 is about 4079.5210503195. The cubic root of 16642492 is about 255.3129158701.

The spelling of 16642492 in words is "sixteen million, six hundred forty-two thousand, four hundred ninety-two".