674490 has 16 divisors (see below), whose sum is σ = 1618848. Its totient is φ = 179856.

The previous prime is 674483. The next prime is 674501. The reversal of 674490 is 94476.

674490 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), and also a Moran number because the ratio is a prime number: 22483 = 674490 / (6 + 7 + 4 + 4 + 9 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11212 + ... + 11271.

It is an arithmetic number, because the mean of its divisors is an integer number (101178).

2⁶⁷⁴⁴⁹⁰ is an apocalyptic number.

674490 is an abundant number, since it is smaller than the sum of its proper divisors (944358).

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

674490 is a wasteful number, since it uses less digits than its factorization.

674490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22493.

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

The square root of 674490 is about 821.2734014931. The cubic root of 674490 is about 87.6984340015.

The spelling of 674490 in words is "six hundred seventy-four thousand, four hundred ninety".