31014072 has 24 divisors (see below), whose sum is σ = 83996640. Its totient is φ = 10338000.

The previous prime is 31014059. The next prime is 31014073. The reversal of 31014072 is 27041013.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31014073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 215304 + ... + 215447.

It is an arithmetic number, because the mean of its divisors is an integer number (3499860).

Almost surely, 2^31014072 is an apocalyptic number.

It is an amenable number.

31014072 is an abundant number, since it is smaller than the sum of its proper divisors (52982568).

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

31014072 is a wasteful number, since it uses less digits than its factorization.

31014072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430763 (or 430756 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 31014072 is about 5569.0279223577. The cubic root of 31014072 is about 314.1855908536.

Adding to 31014072 its reverse (27041013), we get a palindrome (58055085).

The spelling of 31014072 in words is "thirty-one million, fourteen thousand, seventy-two".