20372 has 12 divisors (see below), whose sum is σ = 38976. Its totient is φ = 9240.

The previous prime is 20369. The next prime is 20389. The reversal of 20372 is 27302.

It is a d-powerful number, because it can be written as 2⁷ + 0 + 3⁹ + 7² + 2⁹ .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 20372.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188 + ... + 275.

It is an arithmetic number, because the mean of its divisors is an integer number (3248).

2²⁰³⁷² is an apocalyptic number.

20372 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20372 is a deficient number, since it is larger than the sum of its proper divisors (18604).

20372 is a wasteful number, since it uses less digits than its factorization.

20372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 14.

The square root of 20372 is about 142.7305153077. The cubic root of 20372 is about 27.3114372862.

Adding to 20372 its reverse (27302), we get a palindrome (47674).

The spelling of 20372 in words is "twenty thousand, three hundred seventy-two", and thus it is an iban number.