674982540 has 144 divisors (see below), whose sum is σ = 2132282880. Its totient is φ = 172623360.

The previous prime is 674982493. The next prime is 674982563. The reversal of 674982540 is 45289476.

It is a happy number.

674982540 is a `hidden beast` number, since 67 + 49 + 8 + 2 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 996682 + ... + 997358.

It is an arithmetic number, because the mean of its divisors is an integer number (14807520).

Almost surely, 2^674982540 is an apocalyptic number.

674982540 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 674982540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1066141440).

674982540 is an abundant number, since it is smaller than the sum of its proper divisors (1457300340).

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

674982540 is a wasteful number, since it uses less digits than its factorization.

674982540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912 (or 907 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 674982540 is about 25980.4260935035. The cubic root of 674982540 is about 877.1977579394.

The spelling of 674982540 in words is "six hundred seventy-four million, nine hundred eighty-two thousand, five hundred forty".