242989253 has 8 divisors (see below), whose sum is σ = 270122496. Its totient is φ = 217062000.

The previous prime is 242989217. The next prime is 242989301. The reversal of 242989253 is 352989242.

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

It is not a de Polignac number, because 242989253 - 2¹² = 242985157 is a prime.

It is a super-4 number, since 4×242989253⁴ (a number of 35 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242989853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301073 + ... + 301878.

It is an arithmetic number, because the mean of its divisors is an integer number (33765312).

Almost surely, 2^242989253 is an apocalyptic number.

It is an amenable number.

242989253 is a deficient number, since it is larger than the sum of its proper divisors (27133243).

242989253 is a wasteful number, since it uses less digits than its factorization.

242989253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602995.

The product of its digits is 311040, while the sum is 44.

The square root of 242989253 is about 15588.1125541228. The cubic root of 242989253 is about 624.0159473310.

It can be divided in two parts, 24298925 and 3, that multiplied together give a triangular number (72896775 = T₁₂₀₇₄).

The spelling of 242989253 in words is "two hundred forty-two million, nine hundred eighty-nine thousand, two hundred fifty-three".