42155426 has 8 divisors (see below), whose sum is σ = 63261120. Its totient is φ = 21068388.

The previous prime is 42155411. The next prime is 42155447. The reversal of 42155426 is 62455124.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4955 + ... + 10433.

It is an arithmetic number, because the mean of its divisors is an integer number (7907640).

Almost surely, 2^42155426 is an apocalyptic number.

42155426 is a deficient number, since it is larger than the sum of its proper divisors (21105694).

42155426 is a wasteful number, since it uses less digits than its factorization.

42155426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9328.

The product of its digits is 9600, while the sum is 29.

The square root of 42155426 is about 6492.7210012444. The cubic root of 42155426 is about 348.0309183346.

The spelling of 42155426 in words is "forty-two million, one hundred fifty-five thousand, four hundred twenty-six".