31412472 has 128 divisors (see below), whose sum is σ = 101875200. Its totient is φ = 7838208.

The previous prime is 31412431. The next prime is 31412473. The reversal of 31412472 is 27421413.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31412473) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41118 + ... + 41874.

It is an arithmetic number, because the mean of its divisors is an integer number (795900).

Almost surely, 2^31412472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31412472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50937600).

31412472 is an abundant number, since it is smaller than the sum of its proper divisors (70462728).

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

31412472 is a wasteful number, since it uses less digits than its factorization.

31412472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805 (or 801 counting only the distinct ones).

The product of its digits is 1344, while the sum is 24.

The square root of 31412472 is about 5604.6830418856. The cubic root of 31412472 is about 315.5251908963.

Adding to 31412472 its reverse (27421413), we get a palindrome (58833885).

The spelling of 31412472 in words is "thirty-one million, four hundred twelve thousand, four hundred seventy-two".