31742452 has 12 divisors (see below), whose sum is σ = 63484960. Its totient is φ = 13603896.

The previous prime is 31742449. The next prime is 31742453. The reversal of 31742452 is 25424713.

31742452 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 1133659 = 31742452 / (3 + 1 + 7 + 4 + 2 + 4 + 5 + 2).

It is a self number, because there is not a number n which added to its sum of digits gives 31742452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31742453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 566802 + ... + 566857.

Almost surely, 2^31742452 is an apocalyptic number.

It is an amenable number.

31742452 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31742452 is a wasteful number, since it uses less digits than its factorization.

31742452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133670 (or 1133668 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 31742452 is about 5634.0440182874. The cubic root of 31742452 is about 316.6261818358.

The spelling of 31742452 in words is "thirty-one million, seven hundred forty-two thousand, four hundred fifty-two".