242042434 has 16 divisors (see below), whose sum is σ = 373335480. Its totient is φ = 117619840.

The previous prime is 242042429. The next prime is 242042443. The reversal of 242042434 is 434240242.

It can be written as a sum of positive squares in 4 ways, for example, as 92102409 + 149940025 = 9597^2 + 12245^2 .

It is a junction number, because it is equal to n+sod(n) for n = 242042399 and 242042408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16572 + ... + 27544.

Almost surely, 2^242042434 is an apocalyptic number.

242042434 is a deficient number, since it is larger than the sum of its proper divisors (131293046).

242042434 is a wasteful number, since it uses less digits than its factorization.

242042434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11285.

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 242042434 is about 15557.7130067372. The cubic root of 242042434 is about 623.2043898752.

Adding to 242042434 its reverse (434240242), we get a palindrome (676282676).

The spelling of 242042434 in words is "two hundred forty-two million, forty-two thousand, four hundred thirty-four".