31472630 has 16 divisors (see below), whose sum is σ = 64743840. Its totient is φ = 10790592.

The previous prime is 31472611. The next prime is 31472633. The reversal of 31472630 is 3627413.

It is a self number, because there is not a number n which added to its sum of digits gives 31472630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31472633) 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, 224735 + ... + 224874.

It is an arithmetic number, because the mean of its divisors is an integer number (4046490).

Almost surely, 2^31472630 is an apocalyptic number.

31472630 is an abundant number, since it is smaller than the sum of its proper divisors (33271210).

31472630 is a wasteful number, since it uses less digits than its factorization.

31472630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449623.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 31472630 is about 5610.0472368778. The cubic root of 31472630 is about 315.7264831330.

The spelling of 31472630 in words is "thirty-one million, four hundred seventy-two thousand, six hundred thirty".