20597368 has 64 divisors (see below), whose sum is σ = 45158400. Its totient is φ = 8709120.

The previous prime is 20597333. The next prime is 20597383. The reversal of 20597368 is 86379502.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 20597368.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162121 + ... + 162247.

It is an arithmetic number, because the mean of its divisors is an integer number (705600).

Almost surely, 2^20597368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20597368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22579200).

20597368 is an abundant number, since it is smaller than the sum of its proper divisors (24561032).

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

20597368 is a wasteful number, since it uses less digits than its factorization.

20597368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 20597368 is about 4538.4323284588. The cubic root of 20597368 is about 274.1178032526.

The spelling of 20597368 in words is "twenty million, five hundred ninety-seven thousand, three hundred sixty-eight".