239009642 has 8 divisors (see below), whose sum is σ = 358600932. Its totient is φ = 119476000.

The previous prime is 239009633. The next prime is 239009717. The reversal of 239009642 is 246900932.

It can be written as a sum of positive squares in 2 ways, for example, as 208196041 + 30813601 = 14429^2 + 5551^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1859 + ... + 21942.

Almost surely, 2^239009642 is an apocalyptic number.

239009642 is a deficient number, since it is larger than the sum of its proper divisors (119591290).

239009642 is a wasteful number, since it uses less digits than its factorization.

239009642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28824.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 239009642 is about 15459.9366751614. The cubic root of 239009642 is about 620.5905247795.

The spelling of 239009642 in words is "two hundred thirty-nine million, nine thousand, six hundred forty-two".