242099828 has 24 divisors (see below), whose sum is σ = 433783560. Its totient is φ = 118195200.

The previous prime is 242099821. The next prime is 242099857. The reversal of 242099828 is 828990242.

It can be written as a sum of positive squares in 4 ways, for example, as 47720464 + 194379364 = 6908^2 + 13942^2 .

It is a super-2 number, since 2×242099828² = 117224653435259168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242099821) 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, 25388 + ... + 33596.

It is an arithmetic number, because the mean of its divisors is an integer number (18074315).

Almost surely, 2^242099828 is an apocalyptic number.

It is an amenable number.

242099828 is a deficient number, since it is larger than the sum of its proper divisors (191683732).

242099828 is a wasteful number, since it uses less digits than its factorization.

242099828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8387 (or 8385 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 242099828 is about 15559.5574487194. The cubic root of 242099828 is about 623.2536448279.

The spelling of 242099828 in words is "two hundred forty-two million, ninety-nine thousand, eight hundred twenty-eight".