674519440 has 80 divisors (see below), whose sum is σ = 1809205632. Its totient is φ = 229082112.

The previous prime is 674519429. The next prime is 674519471. The reversal of 674519440 is 44915476.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 674519393 and 674519402.

It is an unprimeable number.

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, 54292 + ... + 65548.

Almost surely, 2^674519440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 674519440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (904602816).

674519440 is an abundant number, since it is smaller than the sum of its proper divisors (1134686192).

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

674519440 is a wasteful number, since it uses less digits than its factorization.

674519440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11384 (or 11378 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 674519440 is about 25971.5120853600. The cubic root of 674519440 is about 876.9970993066.

The spelling of 674519440 in words is "six hundred seventy-four million, five hundred nineteen thousand, four hundred forty".