20112372 has 36 divisors (see below), whose sum is σ = 58103136. Its totient is φ = 5746320.

The previous prime is 20112361. The next prime is 20112401. The reversal of 20112372 is 27321102.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39654 + ... + 40157.

It is an arithmetic number, because the mean of its divisors is an integer number (1613976).

Almost surely, 2^20112372 is an apocalyptic number.

It is an amenable number.

20112372 is an abundant number, since it is smaller than the sum of its proper divisors (37990764).

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

20112372 is a wasteful number, since it uses less digits than its factorization.

20112372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79828 (or 79823 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 20112372 is about 4484.6819285207. The cubic root of 20112372 is about 271.9491867306.

Adding to 20112372 its reverse (27321102), we get a palindrome (47433474).

The spelling of 20112372 in words is "twenty million, one hundred twelve thousand, three hundred seventy-two".