20492965 has 8 divisors (see below), whose sum is σ = 24755328. Its totient is φ = 16285200.

The previous prime is 20492957. The next prime is 20492971. The reversal of 20492965 is 56929402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20492965 - 2³ = 20492957 is a prime.

It is a super-2 number, since 2×20492965² = 839923228982450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12817 + ... + 14326.

It is an arithmetic number, because the mean of its divisors is an integer number (3094416).

Almost surely, 2^20492965 is an apocalyptic number.

It is an amenable number.

20492965 is a deficient number, since it is larger than the sum of its proper divisors (4262363).

20492965 is a wasteful number, since it uses less digits than its factorization.

20492965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27299.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 20492965 is about 4526.9156166202. The cubic root of 20492965 is about 273.6538732431.

The spelling of 20492965 in words is "twenty million, four hundred ninety-two thousand, nine hundred sixty-five".