42434155 has 8 divisors (see below), whose sum is σ = 50965200. Its totient is φ = 33917856.

The previous prime is 42434141. The next prime is 42434173. The reversal of 42434155 is 55143424.

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

It is a cyclic number.

It is not a de Polignac number, because 42434155 - 2²⁵ = 8879723 is a prime.

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, 4176 + ... + 10114.

It is an arithmetic number, because the mean of its divisors is an integer number (6370650).

Almost surely, 2^42434155 is an apocalyptic number.

42434155 is a deficient number, since it is larger than the sum of its proper divisors (8531045).

42434155 is a wasteful number, since it uses less digits than its factorization.

42434155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7373.

The product of its digits is 9600, while the sum is 28.

The square root of 42434155 is about 6514.1503667017. The cubic root of 42434155 is about 348.7962867270.

Adding to 42434155 its reverse (55143424), we get a palindrome (97577579).

The spelling of 42434155 in words is "forty-two million, four hundred thirty-four thousand, one hundred fifty-five".