674344040 has 64 divisors (see below), whose sum is σ = 1553342400. Its totient is φ = 263388672.

The previous prime is 674344039. The next prime is 674344043. The reversal of 674344040 is 40443476.

It is a junction number, because it is equal to n+sod(n) for n = 674343988 and 674344006.

It is not an unprimeable number, because it can be changed into a prime (674344043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383804 + ... + 385556.

It is an arithmetic number, because the mean of its divisors is an integer number (24270975).

Almost surely, 2^674344040 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 674344040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (776671200).

674344040 is an abundant number, since it is smaller than the sum of its proper divisors (878998360).

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

674344040 is a wasteful number, since it uses less digits than its factorization.

674344040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986 (or 1982 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 32.

The square root of 674344040 is about 25968.1350889894. The cubic root of 674344040 is about 876.9210754901.

The spelling of 674344040 in words is "six hundred seventy-four million, three hundred forty-four thousand, forty".