20320892 has 6 divisors (see below), whose sum is σ = 35561568. Its totient is φ = 10160444.

The previous prime is 20320877. The next prime is 20320907. The reversal of 20320892 is 29802302.

It is an interprime number because it is at equal distance from previous prime (20320877) and next prime (20320907).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2540108 + ... + 2540115.

It is an arithmetic number, because the mean of its divisors is an integer number (5926928).

Almost surely, 2^20320892 is an apocalyptic number.

It is an amenable number.

20320892 is a deficient number, since it is larger than the sum of its proper divisors (15240676).

20320892 is a wasteful number, since it uses less digits than its factorization.

20320892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5080227 (or 5080225 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 20320892 is about 4507.8700069989. The cubic root of 20320892 is about 272.8857908495.

It can be divided in two parts, 20320 and 892, that added together give a palindrome (21212).

The spelling of 20320892 in words is "twenty million, three hundred twenty thousand, eight hundred ninety-two".