474245640 has 96 divisors (see below), whose sum is σ = 1681430400. Its totient is φ = 114967680.

The previous prime is 474245633. The next prime is 474245641. The reversal of 474245640 is 46542474.

474245640 is a `hidden beast` number, since 4 + 7 + 4 + 2 + 4 + 5 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 474245595 and 474245604.

It is not an unprimeable number, because it can be changed into a prime (474245641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55920 + ... + 63839.

It is an arithmetic number, because the mean of its divisors is an integer number (17514900).

Almost surely, 2^474245640 is an apocalyptic number.

474245640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

474245640 is an abundant number, since it is smaller than the sum of its proper divisors (1207184760).

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

474245640 is a wasteful number, since it uses less digits than its factorization.

474245640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119787 (or 119780 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 36.

The square root of 474245640 is about 21777.1816358316. The cubic root of 474245640 is about 779.8321137683.

The spelling of 474245640 in words is "four hundred seventy-four million, two hundred forty-five thousand, six hundred forty".