475381900 has 144 divisors (see below), whose sum is σ = 1282140160. Its totient is φ = 149299200.

The previous prime is 475381889. The next prime is 475381901. The reversal of 475381900 is 9183574.

It is a super-2 number, since 2×475381900² = 451975901695220000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 475381900.

It is not an unprimeable number, because it can be changed into a prime (475381901) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 411724 + ... + 412876.

Almost surely, 2^475381900 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 475381900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (641070080).

475381900 is an abundant number, since it is smaller than the sum of its proper divisors (806758260).

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

475381900 is a wasteful number, since it uses less digits than its factorization.

475381900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224 (or 1217 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 475381900 is about 21803.2543442487. The cubic root of 475381900 is about 780.4544250992.

It can be divided in two parts, 475 and 381900, that added together give a triangular number (382375 = T₈₇₄).

The spelling of 475381900 in words is "four hundred seventy-five million, three hundred eighty-one thousand, nine hundred".