31872441 has 16 divisors (see below), whose sum is σ = 43228800. Its totient is φ = 20885760.

The previous prime is 31872427. The next prime is 31872461. The reversal of 31872441 is 14427813.

It is not a de Polignac number, because 31872441 - 2⁵ = 31872409 is a prime.

Its product of digits (5376) is a multiple of the sum of its prime divisors (896).

It is a junction number, because it is equal to n+sod(n) for n = 31872399 and 31872408.

It is not an unprimeable number, because it can be changed into a prime (31872461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50196 + ... + 50826.

It is an arithmetic number, because the mean of its divisors is an integer number (2701800).

Almost surely, 2^31872441 is an apocalyptic number.

It is an amenable number.

31872441 is a deficient number, since it is larger than the sum of its proper divisors (11356359).

31872441 is a wasteful number, since it uses less digits than its factorization.

31872441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896.

The product of its digits is 5376, while the sum is 30.

The square root of 31872441 is about 5645.5682619201. The cubic root of 31872441 is about 317.0578000997.

The spelling of 31872441 in words is "thirty-one million, eight hundred seventy-two thousand, four hundred forty-one".