239923356406 has 32 divisors (see below), whose sum is σ = 394871996160. Its totient is φ = 108925904736.

The previous prime is 239923356401. The next prime is 239923356419. The reversal of 239923356406 is 604653329932.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239923356401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1179250 + ... + 1367653.

It is an arithmetic number, because the mean of its divisors is an integer number (12339749880).

Almost surely, 2^239923356406 is an apocalyptic number.

239923356406 is a deficient number, since it is larger than the sum of its proper divisors (154948639754).

239923356406 is a wasteful number, since it uses less digits than its factorization.

239923356406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2547028.

The product of its (nonzero) digits is 6298560, while the sum is 52.

The spelling of 239923356406 in words is "two hundred thirty-nine billion, nine hundred twenty-three million, three hundred fifty-six thousand, four hundred six".