31484376 has 160 divisors (see below), whose sum is σ = 110119680. Its totient is φ = 8164800.

The previous prime is 31484363. The next prime is 31484377. The reversal of 31484376 is 67348413.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 31484376.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31484377) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 49581 + ... + 50211.

It is an arithmetic number, because the mean of its divisors is an integer number (688248).

Almost surely, 2^31484376 is an apocalyptic number.

31484376 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31484376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55059840).

31484376 is an abundant number, since it is smaller than the sum of its proper divisors (78635304).

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

31484376 is a wasteful number, since it uses less digits than its factorization.

31484376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667 (or 654 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 31484376 is about 5611.0940109750. The cubic root of 31484376 is about 315.7657560082.

The spelling of 31484376 in words is "thirty-one million, four hundred eighty-four thousand, three hundred seventy-six".