20372152 has 16 divisors (see below), whose sum is σ = 39515400. Its totient is φ = 9834720.

The previous prime is 20372119. The next prime is 20372159. The reversal of 20372152 is 25127302.

It is a super-2 number, since 2×20372152² = 830049154222208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20372159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43674 + ... + 44137.

Almost surely, 2^20372152 is an apocalyptic number.

It is an amenable number.

20372152 is a deficient number, since it is larger than the sum of its proper divisors (19143248).

20372152 is a wasteful number, since it uses less digits than its factorization.

20372152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87846 (or 87842 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 20372152 is about 4513.5520380295. The cubic root of 20372152 is about 273.1150521157.

Adding to 20372152 its reverse (25127302), we get a palindrome (45499454).

The spelling of 20372152 in words is "twenty million, three hundred seventy-two thousand, one hundred fifty-two".