674040740 has 24 divisors (see below), whose sum is σ = 1428476280. Its totient is φ = 267141888.

The previous prime is 674040709. The next prime is 674040749. The reversal of 674040740 is 47040476.

It can be written as a sum of positive squares in 4 ways, for example, as 276357376 + 397683364 = 16624^2 + 19942^2 .

It is a junction number, because it is equal to n+sod(n) for n = 674040697 and 674040706.

It is not an unprimeable number, because it can be changed into a prime (674040749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152417 + ... + 156776.

It is an arithmetic number, because the mean of its divisors is an integer number (59519845).

Almost surely, 2^674040740 is an apocalyptic number.

It is an amenable number.

674040740 is an abundant number, since it is smaller than the sum of its proper divisors (754435540).

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

674040740 is a wasteful number, since it uses less digits than its factorization.

674040740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309311 (or 309309 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 674040740 is about 25962.2945827213. The cubic root of 674040740 is about 876.7895847220.

The spelling of 674040740 in words is "six hundred seventy-four million, forty thousand, seven hundred forty".