242090855 has 8 divisors (see below), whose sum is σ = 297594864. Its totient is φ = 188948800.

The previous prime is 242090851. The next prime is 242090881. The reversal of 242090855 is 558090242.

It is a happy number.

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

It is not a de Polignac number, because 242090855 - 2² = 242090851 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242090851) 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, 590261 + ... + 590670.

It is an arithmetic number, because the mean of its divisors is an integer number (37199358).

Almost surely, 2^242090855 is an apocalyptic number.

242090855 is a deficient number, since it is larger than the sum of its proper divisors (55504009).

242090855 is a wasteful number, since it uses less digits than its factorization.

242090855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180977.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 242090855 is about 15559.2691023711. The cubic root of 242090855 is about 623.2459448031.

The spelling of 242090855 in words is "two hundred forty-two million, ninety thousand, eight hundred fifty-five".