20330712 has 48 divisors (see below), whose sum is σ = 57461040. Its totient is φ = 6481728.

The previous prime is 20330693. The next prime is 20330731. The reversal of 20330712 is 21703302.

It is an interprime number because it is at equal distance from previous prime (20330693) and next prime (20330731).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4483 + ... + 7794.

It is an arithmetic number, because the mean of its divisors is an integer number (1197105).

Almost surely, 2^20330712 is an apocalyptic number.

It is an amenable number.

20330712 is an abundant number, since it is smaller than the sum of its proper divisors (37130328).

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

20330712 is a wasteful number, since it uses less digits than its factorization.

20330712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12312 (or 12305 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 20330712 is about 4508.9590816507. The cubic root of 20330712 is about 272.9297408055.

The spelling of 20330712 in words is "twenty million, three hundred thirty thousand, seven hundred twelve".