20660492 has 6 divisors (see below), whose sum is σ = 36155868. Its totient is φ = 10330244.

The previous prime is 20660483. The next prime is 20660501. The reversal of 20660492 is 29406602.

It is an interprime number because it is at equal distance from previous prime (20660483) and next prime (20660501).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2582558 + ... + 2582565.

It is an arithmetic number, because the mean of its divisors is an integer number (6025978).

Almost surely, 2^20660492 is an apocalyptic number.

It is an amenable number.

20660492 is a deficient number, since it is larger than the sum of its proper divisors (15495376).

20660492 is a wasteful number, since it uses less digits than its factorization.

20660492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5165127 (or 5165125 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 20660492 is about 4545.3813921386. The cubic root of 20660492 is about 274.3975439435.

The spelling of 20660492 in words is "twenty million, six hundred sixty thousand, four hundred ninety-two".