239164742 has 8 divisors (see below), whose sum is σ = 377628600. Its totient is φ = 113288544.

The previous prime is 239164729. The next prime is 239164747. The reversal of 239164742 is 247461932.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 6293809 = 239164742 / (2 + 3 + 9 + 1 + 6 + 4 + 7 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 239164696 and 239164705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239164747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3146867 + ... + 3146942.

It is an arithmetic number, because the mean of its divisors is an integer number (47203575).

Almost surely, 2^239164742 is an apocalyptic number.

239164742 is a deficient number, since it is larger than the sum of its proper divisors (138463858).

239164742 is a wasteful number, since it uses less digits than its factorization.

239164742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6293830.

The product of its digits is 72576, while the sum is 38.

The square root of 239164742 is about 15464.9520529486. The cubic root of 239164742 is about 620.7247352331.

The spelling of 239164742 in words is "two hundred thirty-nine million, one hundred sixty-four thousand, seven hundred forty-two".