20237472 has 96 divisors (see below), whose sum is σ = 60177600. Its totient is φ = 6614784.

The previous prime is 20237453. The next prime is 20237479. The reversal of 20237472 is 27473202.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20237479) 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, 50778 + ... + 51174.

It is an arithmetic number, because the mean of its divisors is an integer number (626850).

Almost surely, 2^20237472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20237472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30088800).

20237472 is an abundant number, since it is smaller than the sum of its proper divisors (39940128).

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

20237472 is a wasteful number, since it uses less digits than its factorization.

20237472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 20237472 is about 4498.6077846374. The cubic root of 20237472 is about 272.5118677322.

The spelling of 20237472 in words is "twenty million, two hundred thirty-seven thousand, four hundred seventy-two".