40372 has 6 divisors (see below), whose sum is σ = 70658. Its totient is φ = 20184.

The previous prime is 40361. The next prime is 40387. The reversal of 40372 is 27304.

It can be written as a sum of positive squares in only one way, i.e., 34596 + 5776 = 186^2 + 76^2 .

It is an Ulam number.

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 40372.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5043 + ... + 5050.

2⁴⁰³⁷² is an apocalyptic number.

It is an amenable number.

40372 is a deficient number, since it is larger than the sum of its proper divisors (30286).

40372 is a wasteful number, since it uses less digits than its factorization.

40372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10097 (or 10095 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 40372 is about 200.9278477464. The cubic root of 40372 is about 34.3052104725.

Subtracting from 40372 its product of nonzero digits (168), we obtain a palindrome (40204).

Adding to 40372 its reverse (27304), we get a palindrome (67676).

The spelling of 40372 in words is "forty thousand, three hundred seventy-two", and thus it is an iban number.