42236434 has 16 divisors (see below), whose sum is σ = 64137600. Its totient is φ = 20859120.

The previous prime is 42236399. The next prime is 42236443. The reversal of 42236434 is 43463224.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80497 + ... + 81019.

It is an arithmetic number, because the mean of its divisors is an integer number (4008600).

Almost surely, 2^42236434 is an apocalyptic number.

42236434 is a deficient number, since it is larger than the sum of its proper divisors (21901166).

42236434 is a wasteful number, since it uses less digits than its factorization.

42236434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945.

The product of its digits is 13824, while the sum is 28.

The square root of 42236434 is about 6498.9563777579. The cubic root of 42236434 is about 348.2537069634.

Adding to 42236434 its reverse (43463224), we get a palindrome (85699658).

It can be divided in two parts, 422 and 36434, that added together give a triangular number (36856 = T₂₇₁).

The spelling of 42236434 in words is "forty-two million, two hundred thirty-six thousand, four hundred thirty-four".