20237008 has 30 divisors (see below), whose sum is σ = 43101842. Its totient is φ = 9197760.

The previous prime is 20237003. The next prime is 20237029. The reversal of 20237008 is 80073202.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20142144 + 94864 = 4488^2 + 308^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a self number, because there is not a number n which added to its sum of digits gives 20237008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20237003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3291 + ... + 7162.

Almost surely, 2^20237008 is an apocalyptic number.

It is an amenable number.

20237008 is an abundant number, since it is smaller than the sum of its proper divisors (22864834).

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

20237008 is a wasteful number, since it uses less digits than its factorization.

20237008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10483 (or 10466 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 20237008 is about 4498.5562128310. The cubic root of 20237008 is about 272.5097850202.

The spelling of 20237008 in words is "twenty million, two hundred thirty-seven thousand, eight".