475458840 has 96 divisors (see below), whose sum is σ = 1548078480. Its totient is φ = 126556416.

The previous prime is 475458821. The next prime is 475458871. The reversal of 475458840 is 48854574.

It is a super-2 number, since 2×475458840² = 452122217068291200, 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 23 ways as a sum of consecutive naturals, for example, 296922 + ... + 298518.

Almost surely, 2^475458840 is an apocalyptic number.

475458840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 475458840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (774039240).

475458840 is an abundant number, since it is smaller than the sum of its proper divisors (1072619640).

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

475458840 is a wasteful number, since it uses less digits than its factorization.

475458840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441 (or 2434 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 45.

The square root of 475458840 is about 21805.0186883662. The cubic root of 475458840 is about 780.4965280373.

The spelling of 475458840 in words is "four hundred seventy-five million, four hundred fifty-eight thousand, eight hundred forty".