672405430 has 16 divisors (see below), whose sum is σ = 1210888944. Its totient is φ = 268837920.

The previous prime is 672405401. The next prime is 672405431. The reversal of 672405430 is 34504276.

It is a junction number, because it is equal to n+sod(n) for n = 672405392 and 672405401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672405431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9049 + ... + 37771.

It is an arithmetic number, because the mean of its divisors is an integer number (75680559).

Almost surely, 2^672405430 is an apocalyptic number.

672405430 is a deficient number, since it is larger than the sum of its proper divisors (538483514).

672405430 is a wasteful number, since it uses less digits than its factorization.

672405430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31071.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 672405430 is about 25930.7815154114. The cubic root of 672405430 is about 876.0799422120.

The spelling of 672405430 in words is "six hundred seventy-two million, four hundred five thousand, four hundred thirty".