242243291 has 8 divisors (see below), whose sum is σ = 253290240. Its totient is φ = 231239272.

The previous prime is 242243249. The next prime is 242243303. The reversal of 242243291 is 192342242.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242243291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242243201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1100 + ... + 22038.

It is an arithmetic number, because the mean of its divisors is an integer number (31661280).

Almost surely, 2^242243291 is an apocalyptic number.

242243291 is a deficient number, since it is larger than the sum of its proper divisors (11046949).

242243291 is a wasteful number, since it uses less digits than its factorization.

242243291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21465.

The product of its digits is 6912, while the sum is 29.

The square root of 242243291 is about 15564.1668906498. The cubic root of 242243291 is about 623.3767292909.

The spelling of 242243291 in words is "two hundred forty-two million, two hundred forty-three thousand, two hundred ninety-one".