40472 has 8 divisors (see below), whose sum is σ = 75900. Its totient is φ = 20232.

The previous prime is 40471. The next prime is 40483. The reversal of 40472 is 27404.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 40472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2522 + ... + 2537.

2⁴⁰⁴⁷² is an apocalyptic number.

It is an amenable number.

40472 is a deficient number, since it is larger than the sum of its proper divisors (35428).

40472 is a wasteful number, since it uses less digits than its factorization.

40472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5065 (or 5061 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 40472 is about 201.1765393877. The cubic root of 40472 is about 34.3335113783. Note that the first 3 decimals are identical.

Adding to 40472 its reverse (27404), we get a palindrome (67876).

It can be divided in two parts, 40 and 472, that added together give a 9-th power (512 = 2⁹).

The spelling of 40472 in words is "forty thousand, four hundred seventy-two", and thus it is an iban number.