474472840 has 32 divisors (see below), whose sum is σ = 1074377880. Its totient is φ = 188577792.

The previous prime is 474472783. The next prime is 474472853. The reversal of 474472840 is 48274474.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 434555716 + 39917124 = 20846^2 + 6318^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 474472793 and 474472802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31497 + ... + 44056.

Almost surely, 2^474472840 is an apocalyptic number.

474472840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

474472840 is an abundant number, since it is smaller than the sum of its proper divisors (599905040).

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

474472840 is a wasteful number, since it uses less digits than its factorization.

474472840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75721 (or 75717 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 40.

The square root of 474472840 is about 21782.3974805346. The cubic root of 474472840 is about 779.9566269987.

The spelling of 474472840 in words is "four hundred seventy-four million, four hundred seventy-two thousand, eight hundred forty".