239850945 has 24 divisors (see below), whose sum is σ = 416408616. Its totient is φ = 127715328.

The previous prime is 239850931. The next prime is 239850953. The reversal of 239850945 is 549058932.

It can be written as a sum of positive squares in 4 ways, for example, as 31539456 + 208311489 = 5616^2 + 14433^2 .

It is not a de Polignac number, because 239850945 - 2⁴ = 239850929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 239850945.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26529 + ... + 34401.

It is an arithmetic number, because the mean of its divisors is an integer number (17350359).

Almost surely, 2^239850945 is an apocalyptic number.

It is an amenable number.

239850945 is a deficient number, since it is larger than the sum of its proper divisors (176557671).

239850945 is a wasteful number, since it uses less digits than its factorization.

239850945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8561 (or 8558 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 239850945 is about 15487.1219082178. The cubic root of 239850945 is about 621.3178221753.

The spelling of 239850945 in words is "two hundred thirty-nine million, eight hundred fifty thousand, nine hundred forty-five".