672340 has 12 divisors (see below), whose sum is σ = 1411956. Its totient is φ = 268928.

The previous prime is 672323. The next prime is 672341. The reversal of 672340 is 43276.

It can be written as a sum of positive squares in 2 ways, for example, as 156816 + 515524 = 396^2 + 718^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16789 + ... + 16828.

It is an arithmetic number, because the mean of its divisors is an integer number (117663).

2⁶⁷²³⁴⁰ is an apocalyptic number.

It is an amenable number.

672340 is an abundant number, since it is smaller than the sum of its proper divisors (739616).

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

672340 is a wasteful number, since it uses less digits than its factorization.

672340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33626 (or 33624 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 672340 is about 819.9634138180. The cubic root of 672340 is about 87.6051524947.

The spelling of 672340 in words is "six hundred seventy-two thousand, three hundred forty".