31380814 has 8 divisors (see below), whose sum is σ = 47127528. Its totient is φ = 15671640.

The previous prime is 31380787. The next prime is 31380829. The reversal of 31380814 is 41808313.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7192 + ... + 10699.

It is an arithmetic number, because the mean of its divisors is an integer number (5890941).

Almost surely, 2^31380814 is an apocalyptic number.

31380814 is a deficient number, since it is larger than the sum of its proper divisors (15746714).

31380814 is a wasteful number, since it uses less digits than its factorization.

31380814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18770.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 31380814 is about 5601.8580846001. The cubic root of 31380814 is about 315.4191581287.

The spelling of 31380814 in words is "thirty-one million, three hundred eighty thousand, eight hundred fourteen".