674940 has 48 divisors (see below), whose sum is σ = 2161152. Its totient is φ = 154176.

The previous prime is 674929. The next prime is 674941. The reversal of 674940 is 49476.

674940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 674898 and 674907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674941) 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, 384 + ... + 1223.

It is an arithmetic number, because the mean of its divisors is an integer number (45024).

2⁶⁷⁴⁹⁴⁰ is an apocalyptic number.

674940 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

674940 is an abundant number, since it is smaller than the sum of its proper divisors (1486212).

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

674940 is a wasteful number, since it uses less digits than its factorization.

674940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626 (or 1624 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 674940 is about 821.5473206091. The cubic root of 674940 is about 87.7179329425.

The spelling of 674940 in words is "six hundred seventy-four thousand, nine hundred forty".