674709504 has 240 divisors, whose sum is σ = 2151612288. Its totient is φ = 184025088.

The previous prime is 674709499. The next prime is 674709509. The reversal of 674709504 is 405907476.

It is an interprime number because it is at equal distance from previous prime (674709499) and next prime (674709509).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674709509) 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, 12730342 + ... + 12730394.

Almost surely, 2^674709504 is an apocalyptic number.

674709504 is a gapful number since it is divisible by the number (64) 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 674709504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1075806144).

674709504 is an abundant number, since it is smaller than the sum of its proper divisors (1476902784).

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

674709504 is an equidigital number, since it uses as much as digits as its factorization.

674709504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 674709504 is about 25975.1709137784. The cubic root of 674709504 is about 877.0794640803.

The spelling of 674709504 in words is "six hundred seventy-four million, seven hundred nine thousand, five hundred four".