242439519 has 16 divisors (see below), whose sum is σ = 378443520. Its totient is φ = 135157440.

The previous prime is 242439469. The next prime is 242439523. The reversal of 242439519 is 915934242.

It is not a de Polignac number, because 242439519 - 2⁹ = 242439007 is a prime.

It is a super-2 number, since 2×242439519² = 117553840745902722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242439419) 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, 139929 + ... + 141650.

It is an arithmetic number, because the mean of its divisors is an integer number (23652720).

Almost surely, 2^242439519 is an apocalyptic number.

242439519 is a deficient number, since it is larger than the sum of its proper divisors (136004001).

242439519 is a wasteful number, since it uses less digits than its factorization.

242439519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281630.

The product of its digits is 77760, while the sum is 39.

The square root of 242439519 is about 15570.4694534237. The cubic root of 242439519 is about 623.5450049582.

The spelling of 242439519 in words is "two hundred forty-two million, four hundred thirty-nine thousand, five hundred nineteen".