674784220 has 48 divisors (see below), whose sum is σ = 1547685216. Its totient is φ = 245088000.

The previous prime is 674784211. The next prime is 674784233. The reversal of 674784220 is 22487476.

It is a super-2 number, since 2×674784220² = 910667487122016800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302710 + ... + 304930.

It is an arithmetic number, because the mean of its divisors is an integer number (32243442).

Almost surely, 2^674784220 is an apocalyptic number.

It is an amenable number.

674784220 is an abundant number, since it is smaller than the sum of its proper divisors (872900996).

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

674784220 is a wasteful number, since it uses less digits than its factorization.

674784220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3622 (or 3620 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 40.

The square root of 674784220 is about 25976.6090935672. The cubic root of 674784220 is about 877.1118382355. Note that the first 3 decimals are identical.

The spelling of 674784220 in words is "six hundred seventy-four million, seven hundred eighty-four thousand, two hundred twenty".