674365440 has 288 divisors, whose sum is σ = 2516572800. Its totient is φ = 154140672.

The previous prime is 674365427. The next prime is 674365453. The reversal of 674365440 is 44563476.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (674365427) and next prime (674365453).

It is a Saint-Exupery number, since it is equal to the product of the sides of a Pythagorean triangle: 1120 × 672 × 896.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96337917 + ... + 96337923.

It is an arithmetic number, because the mean of its divisors is an integer number (8738100).

Almost surely, 2^674365440 is an apocalyptic number.

674365440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 674365440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1258286400).

674365440 is an abundant number, since it is smaller than the sum of its proper divisors (1842207360).

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

674365440 is an frugal number, since it uses more digits than its factorization.

674365440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63 (or 17 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 39.

The square root of 674365440 is about 25968.5471291715. The cubic root of 674365440 is about 876.9303516218.

The spelling of 674365440 in words is "six hundred seventy-four million, three hundred sixty-five thousand, four hundred forty".