20238272 has 14 divisors (see below), whose sum is σ = 40160448. Its totient is φ = 10119104.

The previous prime is 20238271. The next prime is 20238307. The reversal of 20238272 is 27283202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20238271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158048 + ... + 158175.

Almost surely, 2^20238272 is an apocalyptic number.

It is an amenable number.

20238272 is a deficient number, since it is larger than the sum of its proper divisors (19922176).

20238272 is an equidigital number, since it uses as much as digits as its factorization.

20238272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316235 (or 316225 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 20238272 is about 4498.6967001566. The cubic root of 20238272 is about 272.5154585400.

The spelling of 20238272 in words is "twenty million, two hundred thirty-eight thousand, two hundred seventy-two".