31443714 has 96 divisors (see below), whose sum is σ = 77051520. Its totient is φ = 9580032.

The previous prime is 31443661. The next prime is 31443721. The reversal of 31443714 is 41734413.

It is a super-2 number, since 2×31443714² = 1977414300227592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 324114 + ... + 324210.

It is an arithmetic number, because the mean of its divisors is an integer number (802620).

Almost surely, 2^31443714 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31443714, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38525760).

31443714 is an abundant number, since it is smaller than the sum of its proper divisors (45607806).

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

31443714 is a wasteful number, since it uses less digits than its factorization.

31443714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 154 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 31443714 is about 5607.4694827524. The cubic root of 31443714 is about 315.6297605268.

The spelling of 31443714 in words is "thirty-one million, four hundred forty-three thousand, seven hundred fourteen".