31325442 has 8 divisors (see below), whose sum is σ = 62650896. Its totient is φ = 10441812.

The previous prime is 31325429. The next prime is 31325447. The reversal of 31325442 is 24452313.

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

31325442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (31325447) 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, 2610448 + ... + 2610459.

It is an arithmetic number, because the mean of its divisors is an integer number (7831362).

Almost surely, 2^31325442 is an apocalyptic number.

31325442 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.

31325442 is a wasteful number, since it uses less digits than its factorization.

31325442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5220912.

The product of its digits is 2880, while the sum is 24.

The square root of 31325442 is about 5596.9136137696. The cubic root of 31325442 is about 315.2335280134.

Adding to 31325442 its reverse (24452313), we get a palindrome (55777755).

The spelling of 31325442 in words is "thirty-one million, three hundred twenty-five thousand, four hundred forty-two".