31475466 has 80 divisors (see below), whose sum is σ = 81544320. Its totient is φ = 8968320.

The previous prime is 31475459. The next prime is 31475471. The reversal of 31475466 is 66457413.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31475466.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 29775 + ... + 30813.

It is an arithmetic number, because the mean of its divisors is an integer number (1019304).

Almost surely, 2^31475466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31475466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40772160).

31475466 is an abundant number, since it is smaller than the sum of its proper divisors (50068854).

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

31475466 is a wasteful number, since it uses less digits than its factorization.

31475466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081 (or 1072 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 31475466 is about 5610.2999919790. The cubic root of 31475466 is about 315.7359662237.

The spelling of 31475466 in words is "thirty-one million, four hundred seventy-five thousand, four hundred sixty-six".