31374030 has 16 divisors (see below), whose sum is σ = 75297744. Its totient is φ = 8366400.

The previous prime is 31374029. The next prime is 31374041. The reversal of 31374030 is 3047313.

It is a junction number, because it is equal to n+sod(n) for n = 31373988 and 31374006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522871 + ... + 522930.

It is an arithmetic number, because the mean of its divisors is an integer number (4706109).

Almost surely, 2^31374030 is an apocalyptic number.

31374030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31374030 is an abundant number, since it is smaller than the sum of its proper divisors (43923714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31374030 is a wasteful number, since it uses less digits than its factorization.

31374030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045811.

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 31374030 is about 5601.2525384953. The cubic root of 31374030 is about 315.3964270657.

The spelling of 31374030 in words is "thirty-one million, three hundred seventy-four thousand, thirty".