674642 has 8 divisors (see below), whose sum is σ = 1026432. Its totient is φ = 332500.

The previous prime is 674603. The next prime is 674647. The reversal of 674642 is 246476.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (674647) by changing a digit.

674642 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2234 + ... + 2517.

It is an arithmetic number, because the mean of its divisors is an integer number (128304).

2⁶⁷⁴⁶⁴² is an apocalyptic number.

674642 is a deficient number, since it is larger than the sum of its proper divisors (351790).

674642 is a wasteful number, since it uses less digits than its factorization.

674642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4824.

The product of its digits is 8064, while the sum is 29.

The square root of 674642 is about 821.3659355001. The cubic root of 674642 is about 87.7050212802.

The spelling of 674642 in words is "six hundred seventy-four thousand, six hundred forty-two".