242199290 has 8 divisors (see below), whose sum is σ = 435958740. Its totient is φ = 96879712.

The previous prime is 242199283. The next prime is 242199337. The reversal of 242199290 is 92991242.

It can be written as a sum of positive squares in 2 ways, for example, as 239413729 + 2785561 = 15473^2 + 1669^2 .

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

It is an unprimeable number.

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, 12109955 + ... + 12109974.

Almost surely, 2^242199290 is an apocalyptic number.

242199290 is a deficient number, since it is larger than the sum of its proper divisors (193759450).

242199290 is a wasteful number, since it uses less digits than its factorization.

242199290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24219936.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 242199290 is about 15562.7532911114. The cubic root of 242199290 is about 623.3389836836.

The spelling of 242199290 in words is "two hundred forty-two million, one hundred ninety-nine thousand, two hundred ninety".