674297280 has 84 divisors (see below), whose sum is σ = 2319311592. Its totient is φ = 179811840.

The previous prime is 674297263. The next prime is 674297291. The reversal of 674297280 is 82792476.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114186 + ... + 119945.

Almost surely, 2^674297280 is an apocalyptic number.

674297280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

674297280 is an abundant number, since it is smaller than the sum of its proper divisors (1645014312).

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

674297280 is a wasteful number, since it uses less digits than its factorization.

674297280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234154 (or 234141 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 674297280 is about 25967.2347391862. The cubic root of 674297280 is about 876.9008060258.

The spelling of 674297280 in words is "six hundred seventy-four million, two hundred ninety-seven thousand, two hundred eighty".