20930588 has 12 divisors (see below), whose sum is σ = 41861232. Its totient is φ = 8970240.

The previous prime is 20930579. The next prime is 20930593. The reversal of 20930588 is 88503902.

20930588 is an admirable number.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373733 + ... + 373788.

It is an arithmetic number, because the mean of its divisors is an integer number (3488436).

Almost surely, 2^20930588 is an apocalyptic number.

20930588 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20930588 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20930588 is a wasteful number, since it uses less digits than its factorization.

20930588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747532 (or 747530 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 20930588 is about 4574.9959562824. The cubic root of 20930588 is about 275.5881099772.

It can be divided in two parts, 2093058 and 8, that multiplied together give a square (16744464 = 4092²).

The spelling of 20930588 in words is "twenty million, nine hundred thirty thousand, five hundred eighty-eight".