42155435 has 24 divisors (see below), whose sum is σ = 61412256. Its totient is φ = 27646080.

The previous prime is 42155411. The next prime is 42155447. The reversal of 42155435 is 53455124.

It is not a de Polignac number, because 42155435 - 2⁶ = 42155371 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42155398 and 42155407.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1895 + ... + 9375.

It is an arithmetic number, because the mean of its divisors is an integer number (2558844).

Almost surely, 2^42155435 is an apocalyptic number.

42155435 is a deficient number, since it is larger than the sum of its proper divisors (19256821).

42155435 is a wasteful number, since it uses less digits than its factorization.

42155435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7523 (or 7516 counting only the distinct ones).

The product of its digits is 12000, while the sum is 29.

The square root of 42155435 is about 6492.7216943282. The cubic root of 42155435 is about 348.0309431023.

The spelling of 42155435 in words is "forty-two million, one hundred fifty-five thousand, four hundred thirty-five".