20598620 has 36 divisors (see below), whose sum is σ = 50321880. Its totient is φ = 7062048.

The previous prime is 20598619. The next prime is 20598623. The reversal of 20598620 is 2689502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20598623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9530 + ... + 11489.

It is an arithmetic number, because the mean of its divisors is an integer number (1397830).

Almost surely, 2^20598620 is an apocalyptic number.

20598620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20598620 is an abundant number, since it is smaller than the sum of its proper divisors (29723260).

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

20598620 is a wasteful number, since it uses less digits than its factorization.

20598620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21042 (or 21033 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 20598620 is about 4538.5702594540. The cubic root of 20598620 is about 274.1233571748.

The spelling of 20598620 in words is "twenty million, five hundred ninety-eight thousand, six hundred twenty".