239489109 has 16 divisors (see below), whose sum is σ = 355386240. Its totient is φ = 159395040.

The previous prime is 239489101. The next prime is 239489141. The reversal of 239489109 is 901984932.

It is not a de Polignac number, because 239489109 - 2³ = 239489101 is a prime.

It is a super-2 number, since 2×239489109² = 114710066659227762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239489101) 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, 10009 + ... + 24065.

It is an arithmetic number, because the mean of its divisors is an integer number (22211640).

Almost surely, 2^239489109 is an apocalyptic number.

It is an amenable number.

239489109 is a deficient number, since it is larger than the sum of its proper divisors (115897131).

239489109 is a wasteful number, since it uses less digits than its factorization.

239489109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14697 (or 14691 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 239489109 is about 15475.4356643036. The cubic root of 239489109 is about 621.0052276159.

The spelling of 239489109 in words is "two hundred thirty-nine million, four hundred eighty-nine thousand, one hundred nine".