674020880 has 40 divisors (see below), whose sum is σ = 1687647192. Its totient is φ = 248868864.

The previous prime is 674020873. The next prime is 674020883. The reversal of 674020880 is 88020476.

It can be written as a sum of positive squares in 4 ways, for example, as 137264656 + 536756224 = 11716^2 + 23168^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 674020880.

It is not an unprimeable number, because it can be changed into a prime (674020883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323009 + ... + 325088.

Almost surely, 2^674020880 is an apocalyptic number.

It is an amenable number.

674020880 is an abundant number, since it is smaller than the sum of its proper divisors (1013626312).

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

674020880 is a wasteful number, since it uses less digits than its factorization.

674020880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648123 (or 648117 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 674020880 is about 25961.9121021546. The cubic root of 674020880 is about 876.7809733670.

Subtracting from 674020880 its product of nonzero digits (21504), we obtain a palindrome (673999376).

The spelling of 674020880 in words is "six hundred seventy-four million, twenty thousand, eight hundred eighty".