20237960 has 16 divisors (see below), whose sum is σ = 45535500. Its totient is φ = 8095168.

The previous prime is 20237957. The next prime is 20237963. The reversal of 20237960 is 6973202.

It is an interprime number because it is at equal distance from previous prime (20237957) and next prime (20237963).

It can be written as a sum of positive squares in 2 ways, for example, as 18887716 + 1350244 = 4346^2 + 1162^2 .

It is not an unprimeable number, because it can be changed into a prime (20237963) 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 3 ways as a sum of consecutive naturals, for example, 252935 + ... + 253014.

Almost surely, 2^20237960 is an apocalyptic number.

20237960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20237960 is an abundant number, since it is smaller than the sum of its proper divisors (25297540).

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

20237960 is a wasteful number, since it uses less digits than its factorization.

20237960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505960 (or 505956 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 20237960 is about 4498.6620233132. The cubic root of 20237960 is about 272.5140581362.

The spelling of 20237960 in words is "twenty million, two hundred thirty-seven thousand, nine hundred sixty".