674634940 has 36 divisors (see below), whose sum is σ = 1648039176. Its totient is φ = 231303072.

The previous prime is 674634937. The next prime is 674634941. The reversal of 674634940 is 49436476.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674634941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 343222 + ... + 345181.

It is an arithmetic number, because the mean of its divisors is an integer number (45778866).

Almost surely, 2^674634940 is an apocalyptic number.

It is an amenable number.

674634940 is an abundant number, since it is smaller than the sum of its proper divisors (973404236).

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

674634940 is a wasteful number, since it uses less digits than its factorization.

674634940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688426 (or 688417 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 43.

The square root of 674634940 is about 25973.7355803897. The cubic root of 674634940 is about 877.0471534034.

The spelling of 674634940 in words is "six hundred seventy-four million, six hundred thirty-four thousand, nine hundred forty".