672235040 has 48 divisors (see below), whose sum is σ = 1618140888. Its totient is φ = 263817216.

The previous prime is 672235021. The next prime is 672235073. The reversal of 672235040 is 40532276.

It can be written as a sum of positive squares in 4 ways, for example, as 502297744 + 169937296 = 22412^2 + 13036^2 .

It is a junction number, because it is equal to n+sod(n) for n = 672234994 and 672235012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31157 + ... + 48116.

Almost surely, 2^672235040 is an apocalyptic number.

It is an amenable number.

672235040 is an abundant number, since it is smaller than the sum of its proper divisors (945905848).

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

672235040 is a wasteful number, since it uses less digits than its factorization.

672235040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79341 (or 79333 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 672235040 is about 25927.4958297171. The cubic root of 672235040 is about 876.0059353378.

The spelling of 672235040 in words is "six hundred seventy-two million, two hundred thirty-five thousand, forty".