16742656 has 36 divisors (see below), whose sum is σ = 38198272. Its totient is φ = 7174656.

The previous prime is 16742641. The next prime is 16742659. The reversal of 16742656 is 65624761.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (16742659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2880 + ... + 6463.

Almost surely, 2^16742656 is an apocalyptic number.

16742656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16742656 is an abundant number, since it is smaller than the sum of its proper divisors (21455616).

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

16742656 is an frugal number, since it uses more digits than its factorization.

16742656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9366 (or 9352 counting only the distinct ones).

The product of its digits is 60480, while the sum is 37.

The square root of 16742656 is about 4091.7790751701. The cubic root of 16742656 is about 255.8240979123.

The spelling of 16742656 in words is "sixteen million, seven hundred forty-two thousand, six hundred fifty-six".