31424342 has 8 divisors (see below), whose sum is σ = 48762000. Its totient is φ = 15170344.

The previous prime is 31424329. The next prime is 31424353. The reversal of 31424342 is 24342413.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270842 + ... + 270957.

It is an arithmetic number, because the mean of its divisors is an integer number (6095250).

Almost surely, 2^31424342 is an apocalyptic number.

31424342 is a deficient number, since it is larger than the sum of its proper divisors (17337658).

31424342 is a wasteful number, since it uses less digits than its factorization.

31424342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541830.

The product of its digits is 2304, while the sum is 23.

The square root of 31424342 is about 5605.7418777536. The cubic root of 31424342 is about 315.5649289592.

Adding to 31424342 its reverse (24342413), we get a palindrome (55766755).

The spelling of 31424342 in words is "thirty-one million, four hundred twenty-four thousand, three hundred forty-two".