674340403 has 8 divisors (see below), whose sum is σ = 735957360. Its totient is φ = 612775680.

The previous prime is 674340391. The next prime is 674340431. The reversal of 674340403 is 304043476.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 674340403 - 2¹⁷ = 674209331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (674340203) 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, 16951 + ... + 40447.

It is an arithmetic number, because the mean of its divisors is an integer number (91994670).

Almost surely, 2^674340403 is an apocalyptic number.

674340403 is a deficient number, since it is larger than the sum of its proper divisors (61616957).

674340403 is a wasteful number, since it uses less digits than its factorization.

674340403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26117.

The product of its (nonzero) digits is 24192, while the sum is 31.

The square root of 674340403 is about 25968.0650607626. The cubic root of 674340403 is about 876.9194989616.

Adding to 674340403 its reverse (304043476), we get a palindrome (978383879).

The spelling of 674340403 in words is "six hundred seventy-four million, three hundred forty thousand, four hundred three".