475344990 has 64 divisors (see below), whose sum is σ = 1342163520. Its totient is φ = 119301120.

The previous prime is 475344971. The next prime is 475344997. The reversal of 475344990 is 99443574.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475344997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47191 + ... + 56370.

It is an arithmetic number, because the mean of its divisors is an integer number (20971305).

Almost surely, 2^475344990 is an apocalyptic number.

475344990 is an abundant number, since it is smaller than the sum of its proper divisors (866818530).

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

475344990 is a wasteful number, since it uses less digits than its factorization.

475344990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103594 (or 103588 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 475344990 is about 21802.4078945423. The cubic root of 475344990 is about 780.4342256775.

The spelling of 475344990 in words is "four hundred seventy-five million, three hundred forty-four thousand, nine hundred ninety".