239749011 has 64 divisors (see below), whose sum is σ = 407116800. Its totient is φ = 138475008.

The previous prime is 239748991. The next prime is 239749063. The reversal of 239749011 is 110947932.

239749011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 239749011 - 2⁵ = 239748979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (239729011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 322306 + ... + 323048.

It is an arithmetic number, because the mean of its divisors is an integer number (6361200).

Almost surely, 2^239749011 is an apocalyptic number.

239749011 is a deficient number, since it is larger than the sum of its proper divisors (167367789).

239749011 is a wasteful number, since it uses less digits than its factorization.

239749011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825 (or 819 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 239749011 is about 15483.8306306934. The cubic root of 239749011 is about 621.2297919683.

The spelling of 239749011 in words is "two hundred thirty-nine million, seven hundred forty-nine thousand, eleven".