31480536 has 16 divisors (see below), whose sum is σ = 78701400. Its totient is φ = 10493504.

The previous prime is 31480529. The next prime is 31480621. The reversal of 31480536 is 63508413.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 655821 + ... + 655868.

Almost surely, 2^31480536 is an apocalyptic number.

It is an amenable number.

31480536 is an abundant number, since it is smaller than the sum of its proper divisors (47220864).

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

31480536 is a wasteful number, since it uses less digits than its factorization.

31480536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311698 (or 1311694 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 31480536 is about 5610.7518212803. The cubic root of 31480536 is about 315.7529180024.

Adding to 31480536 its reverse (63508413), we get a palindrome (94988949).

The spelling of 31480536 in words is "thirty-one million, four hundred eighty thousand, five hundred thirty-six".