474776820 has 72 divisors (see below), whose sum is σ = 1645897344. Its totient is φ = 108520128.

The previous prime is 474776789. The next prime is 474776821. The reversal of 474776820 is 28677474.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (474776821) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 187144 + ... + 189663.

Almost surely, 2^474776820 is an apocalyptic number.

It is an amenable number.

474776820 is an abundant number, since it is smaller than the sum of its proper divisors (1171120524).

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

474776820 is a wasteful number, since it uses less digits than its factorization.

474776820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376829 (or 376824 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 45.

The square root of 474776820 is about 21789.3740157904. The cubic root of 474776820 is about 780.1231560960.

The spelling of 474776820 in words is "four hundred seventy-four million, seven hundred seventy-six thousand, eight hundred twenty".