242151836 has 12 divisors (see below), whose sum is σ = 428871912. Its totient is φ = 119617008.

The previous prime is 242151821. The next prime is 242151839. The reversal of 242151836 is 638151242.

It is a super-3 number, since 3×242151836³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242151839) 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 3 ways as a sum of consecutive naturals, for example, 364355 + ... + 365018.

It is an arithmetic number, because the mean of its divisors is an integer number (35739326).

Almost surely, 2^242151836 is an apocalyptic number.

It is an amenable number.

242151836 is a deficient number, since it is larger than the sum of its proper divisors (186720076).

242151836 is a wasteful number, since it uses less digits than its factorization.

242151836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729460 (or 729458 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 242151836 is about 15561.2286147335. The cubic root of 242151836 is about 623.2982708472.

The spelling of 242151836 in words is "two hundred forty-two million, one hundred fifty-one thousand, eight hundred thirty-six".