239289740 has 12 divisors (see below), whose sum is σ = 502508496. Its totient is φ = 95715888.

The previous prime is 239289731. The next prime is 239289749. The reversal of 239289740 is 47982932.

It is an interprime number because it is at equal distance from previous prime (239289731) and next prime (239289749).

It is a junction number, because it is equal to n+sod(n) for n = 239289691 and 239289700.

It is not an unprimeable number, because it can be changed into a prime (239289749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5982224 + ... + 5982263.

It is an arithmetic number, because the mean of its divisors is an integer number (41875708).

Almost surely, 2^239289740 is an apocalyptic number.

239289740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

239289740 is an abundant number, since it is smaller than the sum of its proper divisors (263218756).

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

239289740 is a wasteful number, since it uses less digits than its factorization.

239289740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11964496 (or 11964494 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 239289740 is about 15468.9928566795. The cubic root of 239289740 is about 620.8328557369.

The spelling of 239289740 in words is "two hundred thirty-nine million, two hundred eighty-nine thousand, seven hundred forty".