475142664 has 64 divisors (see below), whose sum is σ = 1211618880. Its totient is φ = 155232000.

The previous prime is 475142659. The next prime is 475142729. The reversal of 475142664 is 466241574.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 718494 + ... + 719154.

It is an arithmetic number, because the mean of its divisors is an integer number (18931545).

Almost surely, 2^475142664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 475142664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (605809440).

475142664 is an abundant number, since it is smaller than the sum of its proper divisors (736476216).

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

475142664 is a wasteful number, since it uses less digits than its factorization.

475142664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222 (or 1218 counting only the distinct ones).

The product of its digits is 161280, while the sum is 39.

The square root of 475142664 is about 21797.7674086132. The cubic root of 475142664 is about 780.3234818690.

The spelling of 475142664 in words is "four hundred seventy-five million, one hundred forty-two thousand, six hundred sixty-four".