31467480 has 128 divisors (see below), whose sum is σ = 106444800. Its totient is φ = 7372800.

The previous prime is 31467467. The next prime is 31467481. The reversal of 31467480 is 8476413.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31467481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40536 + ... + 41304.

It is an arithmetic number, because the mean of its divisors is an integer number (831600).

Almost surely, 2^31467480 is an apocalyptic number.

31467480 is a gapful number since it is divisible by the number (30) 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 31467480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53222400).

31467480 is an abundant number, since it is smaller than the sum of its proper divisors (74977320).

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

31467480 is a wasteful number, since it uses less digits than its factorization.

31467480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825 (or 821 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 31467480 is about 5609.5882201816. The cubic root of 31467480 is about 315.7092609722.

The spelling of 31467480 in words is "thirty-one million, four hundred sixty-seven thousand, four hundred eighty".