31426342 has 8 divisors (see below), whose sum is σ = 49620600. Its totient is φ = 14886144.

The previous prime is 31426337. The next prime is 31426363. The reversal of 31426342 is 24362413.

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

It is a super-2 number, since 2×31426342² = 1975229943001928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413467 + ... + 413542.

It is an arithmetic number, because the mean of its divisors is an integer number (6202575).

Almost surely, 2^31426342 is an apocalyptic number.

31426342 is a deficient number, since it is larger than the sum of its proper divisors (18194258).

31426342 is a wasteful number, since it uses less digits than its factorization.

31426342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827030.

The product of its digits is 3456, while the sum is 25.

The square root of 31426342 is about 5605.9202634358. The cubic root of 31426342 is about 315.5716235196.

Adding to 31426342 its reverse (24362413), we get a palindrome (55788755).

The spelling of 31426342 in words is "thirty-one million, four hundred twenty-six thousand, three hundred forty-two".