242253791 has 16 divisors (see below), whose sum is σ = 285768000. Its totient is φ = 203202048.

The previous prime is 242253773. The next prime is 242253797. The reversal of 242253791 is 197352242.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 242253791 - 2⁶ = 242253727 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 (242253797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12491 + ... + 25308.

It is an arithmetic number, because the mean of its divisors is an integer number (17860500).

Almost surely, 2^242253791 is an apocalyptic number.

242253791 is a deficient number, since it is larger than the sum of its proper divisors (43514209).

242253791 is a wasteful number, since it uses less digits than its factorization.

242253791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37858.

The product of its digits is 30240, while the sum is 35.

The square root of 242253791 is about 15564.5042002629. The cubic root of 242253791 is about 623.3857358851.

The spelling of 242253791 in words is "two hundred forty-two million, two hundred fifty-three thousand, seven hundred ninety-one".