672442 has 4 divisors (see below), whose sum is σ = 1008666. Its totient is φ = 336220.

The previous prime is 672439. The next prime is 672443. The reversal of 672442 is 244276.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 670761 + 1681 = 819^2 + 41^2 .

It is not an unprimeable number, because it can be changed into a prime (672443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168109 + ... + 168112.

2⁶⁷²⁴⁴² is an apocalyptic number.

672442 is a deficient number, since it is larger than the sum of its proper divisors (336224).

672442 is a wasteful number, since it uses less digits than its factorization.

672442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336223.

The product of its digits is 2688, while the sum is 25.

The square root of 672442 is about 820.0256093562. The cubic root of 672442 is about 87.6095824328.

The spelling of 672442 in words is "six hundred seventy-two thousand, four hundred forty-two".