20358712 has 16 divisors (see below), whose sum is σ = 41643000. Its totient is φ = 9253920.

The previous prime is 20358697. The next prime is 20358719. The reversal of 20358712 is 21785302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20358719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115587 + ... + 115762.

Almost surely, 2^20358712 is an apocalyptic number.

20358712 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20358712 is an abundant number, since it is smaller than the sum of its proper divisors (21284288).

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

20358712 is a wasteful number, since it uses less digits than its factorization.

20358712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231366 (or 231362 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 20358712 is about 4512.0629428234. The cubic root of 20358712 is about 273.0549787075.

The spelling of 20358712 in words is "twenty million, three hundred fifty-eight thousand, seven hundred twelve".