672090390 has 24 divisors (see below), whose sum is σ = 1747435248. Its totient is φ = 179224080.

The previous prime is 672090389. The next prime is 672090407. The reversal of 672090390 is 93090276.

672090390 is a `hidden beast` number, since 67 + 209 + 0 + 390 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3733746 + ... + 3733925.

It is an arithmetic number, because the mean of its divisors is an integer number (72809802).

Almost surely, 2^672090390 is an apocalyptic number.

672090390 is an abundant number, since it is smaller than the sum of its proper divisors (1075344858).

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

672090390 is a wasteful number, since it uses less digits than its factorization.

672090390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7467684 (or 7467681 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 672090390 is about 25924.7061699839. The cubic root of 672090390 is about 875.9430985120.

The spelling of 672090390 in words is "six hundred seventy-two million, ninety thousand, three hundred ninety".