242219949 has 4 divisors (see below), whose sum is σ = 322959936. Its totient is φ = 161479964.

The previous prime is 242219947. The next prime is 242219951. The reversal of 242219949 is 949912242.

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 an interprime number because it is at equal distance from previous prime (242219947) and next prime (242219951).

It is a cyclic number.

It is not a de Polignac number, because 242219949 - 2¹ = 242219947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242219949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242219947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40369989 + ... + 40369994.

It is an arithmetic number, because the mean of its divisors is an integer number (80739984).

Almost surely, 2^242219949 is an apocalyptic number.

It is an amenable number.

242219949 is a deficient number, since it is larger than the sum of its proper divisors (80739987).

242219949 is an equidigital number, since it uses as much as digits as its factorization.

242219949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80739986.

The product of its digits is 93312, while the sum is 42.

The square root of 242219949 is about 15563.4170091275. The cubic root of 242219949 is about 623.3567062705.

The spelling of 242219949 in words is "two hundred forty-two million, two hundred nineteen thousand, nine hundred forty-nine".