20373572 has 24 divisors (see below), whose sum is σ = 37669632. Its totient is φ = 9626400.

The previous prime is 20373557. The next prime is 20373581. The reversal of 20373572 is 27537302.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3422 + ... + 7242.

It is an arithmetic number, because the mean of its divisors is an integer number (1569568).

Almost surely, 2^20373572 is an apocalyptic number.

It is an amenable number.

20373572 is a deficient number, since it is larger than the sum of its proper divisors (17296060).

20373572 is a wasteful number, since it uses less digits than its factorization.

20373572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3899 (or 3897 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 29.

The square root of 20373572 is about 4513.7093393350. The cubic root of 20373572 is about 273.1213976139.

The spelling of 20373572 in words is "twenty million, three hundred seventy-three thousand, five hundred seventy-two".