31488413 has 8 divisors (see below), whose sum is σ = 34999776. Its totient is φ = 28085200.

The previous prime is 31488407. The next prime is 31488433.

31488413 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 31488413 - 2¹² = 31484317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31488413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31488433) 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, 26423 + ... + 27588.

It is an arithmetic number, because the mean of its divisors is an integer number (4374972).

Almost surely, 2^31488413 is an apocalyptic number.

It is an amenable number.

31488413 is a deficient number, since it is larger than the sum of its proper divisors (3511363).

31488413 is a wasteful number, since it uses less digits than its factorization.

31488413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54075.

The product of its digits is 9216, while the sum is 32.

The square root of 31488413 is about 5611.4537332139. The cubic root of 31488413 is about 315.7792515049.

The spelling of 31488413 in words is "thirty-one million, four hundred eighty-eight thousand, four hundred thirteen".