20238474 has 32 divisors (see below), whose sum is σ = 42591744. Its totient is φ = 6402240.

The previous prime is 20238473. The next prime is 20238523. The reversal of 20238474 is 47483202.

It is not an unprimeable number, because it can be changed into a prime (20238473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8832 + ... + 10884.

It is an arithmetic number, because the mean of its divisors is an integer number (1330992).

Almost surely, 2^20238474 is an apocalyptic number.

20238474 is an abundant number, since it is smaller than the sum of its proper divisors (22353270).

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

20238474 is a wasteful number, since it uses less digits than its factorization.

20238474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 20238474 is about 4498.7191510473. The cubic root of 20238474 is about 272.5163652041.

The spelling of 20238474 in words is "twenty million, two hundred thirty-eight thousand, four hundred seventy-four".