16620492 has 96 divisors (see below), whose sum is σ = 47803392. Its totient is φ = 4386816.

The previous prime is 16620481. The next prime is 16620493. The reversal of 16620492 is 29402661.

16620492 is nontrivially palindromic in base 11.

It is not an unprimeable number, because it can be changed into a prime (16620493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147028 + ... + 147140.

It is an arithmetic number, because the mean of its divisors is an integer number (497952).

Almost surely, 2^16620492 is an apocalyptic number.

16620492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16620492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23901696).

16620492 is an abundant number, since it is smaller than the sum of its proper divisors (31182900).

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

16620492 is a wasteful number, since it uses less digits than its factorization.

16620492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 16620492 is about 4076.8237636670. The cubic root of 16620492 is about 255.2003653981.

The spelling of 16620492 in words is "sixteen million, six hundred twenty thousand, four hundred ninety-two".