20373955 has 24 divisors (see below), whose sum is σ = 28695168. Its totient is φ = 13845888.

The previous prime is 20373943. The next prime is 20373967. The reversal of 20373955 is 55937302.

It is an interprime number because it is at equal distance from previous prime (20373943) and next prime (20373967).

It is not a de Polignac number, because 20373955 - 2⁵ = 20373923 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20373955.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33262 + ... + 33868.

It is an arithmetic number, because the mean of its divisors is an integer number (1195632).

Almost surely, 2^20373955 is an apocalyptic number.

20373955 is a deficient number, since it is larger than the sum of its proper divisors (8321213).

20373955 is a wasteful number, since it uses less digits than its factorization.

20373955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763 (or 756 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 34.

The square root of 20373955 is about 4513.7517654386. The cubic root of 20373955 is about 273.1231090605.

The spelling of 20373955 in words is "twenty million, three hundred seventy-three thousand, nine hundred fifty-five".