242192919 has 16 divisors (see below), whose sum is σ = 326430720. Its totient is φ = 159718560.

The previous prime is 242192917. The next prime is 242192953. The reversal of 242192919 is 919291242.

It is not a de Polignac number, because 242192919 - 2¹ = 242192917 is a prime.

It is a super-2 number, since 2×242192919² = 117314820027481122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242192917) 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, 113674 + ... + 115784.

It is an arithmetic number, because the mean of its divisors is an integer number (20401920).

Almost surely, 2^242192919 is an apocalyptic number.

242192919 is a deficient number, since it is larger than the sum of its proper divisors (84237801).

242192919 is a wasteful number, since it uses less digits than its factorization.

242192919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510.

The product of its digits is 23328, while the sum is 39.

The square root of 242192919 is about 15562.5486023337. The cubic root of 242192919 is about 623.3335180366. Note that the first 3 decimals are identical.

The spelling of 242192919 in words is "two hundred forty-two million, one hundred ninety-two thousand, nine hundred nineteen".