31345376 has 12 divisors (see below), whose sum is σ = 61711272. Its totient is φ = 15672672.

The previous prime is 31345373. The next prime is 31345403. The reversal of 31345376 is 67354313.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 979543 = 31345376 / (3 + 1 + 3 + 4 + 5 + 3 + 7 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31345373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489740 + ... + 489803.

It is an arithmetic number, because the mean of its divisors is an integer number (5142606).

Almost surely, 2^31345376 is an apocalyptic number.

It is an amenable number.

31345376 is a deficient number, since it is larger than the sum of its proper divisors (30365896).

31345376 is an equidigital number, since it uses as much as digits as its factorization.

31345376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979553 (or 979545 counting only the distinct ones).

The product of its digits is 22680, while the sum is 32.

The square root of 31345376 is about 5598.6941334565. The cubic root of 31345376 is about 315.3003803045.

Adding to 31345376 its reverse (67354313), we get a palindrome (98699689).

The spelling of 31345376 in words is "thirty-one million, three hundred forty-five thousand, three hundred seventy-six".