31304342 has 4 divisors (see below), whose sum is σ = 46956516. Its totient is φ = 15652170.

The previous prime is 31304341. The next prime is 31304347. The reversal of 31304342 is 24340313.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31304341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7826084 + ... + 7826087.

It is an arithmetic number, because the mean of its divisors is an integer number (11739129).

Almost surely, 2^31304342 is an apocalyptic number.

31304342 is a deficient number, since it is larger than the sum of its proper divisors (15652174).

31304342 is a wasteful number, since it uses less digits than its factorization.

31304342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15652173.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 31304342 is about 5595.0283287933. The cubic root of 31304342 is about 315.1627344242.

Adding to 31304342 its reverse (24340313), we get a palindrome (55644655).

The spelling of 31304342 in words is "thirty-one million, three hundred four thousand, three hundred forty-two".