672940 has 12 divisors (see below), whose sum is σ = 1413216. Its totient is φ = 269168.

The previous prime is 672937. The next prime is 672943. The reversal of 672940 is 49276.

It is an interprime number because it is at equal distance from previous prime (672937) and next prime (672943).

It is a junction number, because it is equal to n+sod(n) for n = 672899 and 672908.

It is not an unprimeable number, because it can be changed into a prime (672943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16804 + ... + 16843.

It is an arithmetic number, because the mean of its divisors is an integer number (117768).

2⁶⁷²⁹⁴⁰ is an apocalyptic number.

It is an amenable number.

672940 is an abundant number, since it is smaller than the sum of its proper divisors (740276).

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

672940 is a wasteful number, since it uses less digits than its factorization.

672940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33656 (or 33654 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 672940 is about 820.3292022109. The cubic root of 672940 is about 87.6312045236.

The spelling of 672940 in words is "six hundred seventy-two thousand, nine hundred forty".