674390440 has 64 divisors (see below), whose sum is σ = 1541928960. Its totient is φ = 265428480.

The previous prime is 674390419. The next prime is 674390449. The reversal of 674390440 is 44093476.

It is a self number, because there is not a number n which added to its sum of digits gives 674390440.

It is not an unprimeable number, because it can be changed into a prime (674390449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 786492 + ... + 787348.

It is an arithmetic number, because the mean of its divisors is an integer number (24092640).

Almost surely, 2^674390440 is an apocalyptic number.

It is an amenable number.

674390440 is an abundant number, since it is smaller than the sum of its proper divisors (867538520).

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

674390440 is a wasteful number, since it uses less digits than its factorization.

674390440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162 (or 1158 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 674390440 is about 25969.0284762445. The cubic root of 674390440 is about 876.9411879758.

The spelling of 674390440 in words is "six hundred seventy-four million, three hundred ninety thousand, four hundred forty".