31302042 has 8 divisors (see below), whose sum is σ = 62604096. Its totient is φ = 10434012.

The previous prime is 31302023. The next prime is 31302043. The reversal of 31302042 is 24020313.

It is a sphenic number, since it is the product of 3 distinct primes.

31302042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (31302043) 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, 2608498 + ... + 2608509.

It is an arithmetic number, because the mean of its divisors is an integer number (7825512).

Almost surely, 2^31302042 is an apocalyptic number.

31302042 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.

31302042 is a wasteful number, since it uses less digits than its factorization.

31302042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5217012.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 31302042 is about 5594.8227853972. The cubic root of 31302042 is about 315.1550156649.

Adding to 31302042 its reverse (24020313), we get a palindrome (55322355).

The spelling of 31302042 in words is "thirty-one million, three hundred two thousand, forty-two".