31434382 has 12 divisors (see below), whose sum is σ = 54849960. Its totient is φ = 13471836.

The previous prime is 31434373. The next prime is 31434407. The reversal of 31434382 is 28343413.

It is a self number, because there is not a number n which added to its sum of digits gives 31434382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 160282 + ... + 160477.

It is an arithmetic number, because the mean of its divisors is an integer number (4570830).

Almost surely, 2^31434382 is an apocalyptic number.

31434382 is a deficient number, since it is larger than the sum of its proper divisors (23415578).

31434382 is a wasteful number, since it uses less digits than its factorization.

31434382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320775 (or 320768 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 31434382 is about 5606.6373166097. The cubic root of 31434382 is about 315.5985327870.

Adding to 31434382 its reverse (28343413), we get a palindrome (59777795).

The spelling of 31434382 in words is "thirty-one million, four hundred thirty-four thousand, three hundred eighty-two".