31880481 has 8 divisors (see below), whose sum is σ = 42596544. Its totient is φ = 21209040.

The previous prime is 31880477. The next prime is 31880503. The reversal of 31880481 is 18408813.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31880481 - 2² = 31880477 is a prime.

It is a super-2 number, since 2×31880481² = 2032730137582722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31880281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9450 + ... + 12371.

It is an arithmetic number, because the mean of its divisors is an integer number (5324568).

Almost surely, 2^31880481 is an apocalyptic number.

It is an amenable number.

31880481 is a deficient number, since it is larger than the sum of its proper divisors (10716063).

31880481 is a wasteful number, since it uses less digits than its factorization.

31880481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22311.

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 31880481 is about 5646.2802799719. The cubic root of 31880481 is about 317.0844577211.

The spelling of 31880481 in words is "thirty-one million, eight hundred eighty thousand, four hundred eighty-one".