31488466 has 8 divisors (see below), whose sum is σ = 48124044. Its totient is φ = 15447120.

The previous prime is 31488463. The next prime is 31488469. The reversal of 31488466 is 66488413.

It is an interprime number because it is at equal distance from previous prime (31488463) and next prime (31488469).

It can be written as a sum of positive squares in 2 ways, for example, as 24354225 + 7134241 = 4935^2 + 2671^2 .

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

It is not an unprimeable number, because it can be changed into a prime (31488463) 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 3 ways as a sum of consecutive naturals, for example, 148425 + ... + 148636.

Almost surely, 2^31488466 is an apocalyptic number.

31488466 is a deficient number, since it is larger than the sum of its proper divisors (16635578).

31488466 is a wasteful number, since it uses less digits than its factorization.

31488466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297116.

The product of its digits is 110592, while the sum is 40.

The square root of 31488466 is about 5611.4584556958. The cubic root of 31488466 is about 315.7794286737.

The spelling of 31488466 in words is "thirty-one million, four hundred eighty-eight thousand, four hundred sixty-six".