242198429 has 4 divisors (see below), whose sum is σ = 264216480. Its totient is φ = 220180380.

The previous prime is 242198419. The next prime is 242198431. The reversal of 242198429 is 924891242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242198429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242198419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11009009 + ... + 11009030.

It is an arithmetic number, because the mean of its divisors is an integer number (66054120).

Almost surely, 2^242198429 is an apocalyptic number.

It is an amenable number.

242198429 is a deficient number, since it is larger than the sum of its proper divisors (22018051).

242198429 is a wasteful number, since it uses less digits than its factorization.

242198429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22018050.

The product of its digits is 82944, while the sum is 41.

The square root of 242198429 is about 15562.7256288865. The cubic root of 242198429 is about 623.3382450419.

The spelling of 242198429 in words is "two hundred forty-two million, one hundred ninety-eight thousand, four hundred twenty-nine".