479691900 has 108 divisors (see below), whose sum is σ = 1555499400. Its totient is φ = 123500160.

The previous prime is 479691859. The next prime is 479691913. The reversal of 479691900 is 9196974.

479691900 is a `hidden beast` number, since 479 + 6 + 91 + 90 + 0 = 666.

It is a super-2 number, since 2×479691900² = 460208637851220000, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 16911 + ... + 35289.

Almost surely, 2^479691900 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 479691900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (777749700).

479691900 is an abundant number, since it is smaller than the sum of its proper divisors (1075807500).

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

479691900 is a wasteful number, since it uses less digits than its factorization.

479691900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18428 (or 18418 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 479691900 is about 21901.8697831943. The cubic root of 479691900 is about 782.8059686667.

The spelling of 479691900 in words is "four hundred seventy-nine million, six hundred ninety-one thousand, nine hundred".