20235872 has 12 divisors (see below), whose sum is σ = 39839436. Its totient is φ = 10117920.

The previous prime is 20235869. The next prime is 20235889. The reversal of 20235872 is 27853202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316154 + ... + 316217.

It is an arithmetic number, because the mean of its divisors is an integer number (3319953).

Almost surely, 2^20235872 is an apocalyptic number.

It is an amenable number.

20235872 is a deficient number, since it is larger than the sum of its proper divisors (19603564).

20235872 is an equidigital number, since it uses as much as digits as its factorization.

20235872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632381 (or 632373 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 20235872 is about 4498.4299483264. The cubic root of 20235872 is about 272.5046858325.

The spelling of 20235872 in words is "twenty million, two hundred thirty-five thousand, eight hundred seventy-two".