31482380 has 24 divisors (see below), whose sum is σ = 66287760. Its totient is φ = 12559680.

The previous prime is 31482349. The next prime is 31482389. The reversal of 31482380 is 8328413.

It is a happy number.

It is a super-2 number, since 2×31482380² = 1982280500928800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31482389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6551 + ... + 10289.

It is an arithmetic number, because the mean of its divisors is an integer number (2761990).

Almost surely, 2^31482380 is an apocalyptic number.

It is an amenable number.

31482380 is an abundant number, since it is smaller than the sum of its proper divisors (34805380).

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

31482380 is a wasteful number, since it uses less digits than its factorization.

31482380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4169 (or 4167 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 31482380 is about 5610.9161462278. The cubic root of 31482380 is about 315.7590830500.

The spelling of 31482380 in words is "thirty-one million, four hundred eighty-two thousand, three hundred eighty".