42105427 has 8 divisors (see below), whose sum is σ = 51822176. Its totient is φ = 33314112.

The previous prime is 42105407. The next prime is 42105449. The reversal of 42105427 is 72450124.

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

It is not a de Polignac number, because 42105427 - 2¹¹ = 42103379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42105407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231258 + ... + 231439.

It is an arithmetic number, because the mean of its divisors is an integer number (6477772).

Almost surely, 2^42105427 is an apocalyptic number.

42105427 is a deficient number, since it is larger than the sum of its proper divisors (9716749).

42105427 is a wasteful number, since it uses less digits than its factorization.

42105427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462717.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 42105427 is about 6488.8694701003. The cubic root of 42105427 is about 347.8932683433.

The spelling of 42105427 in words is "forty-two million, one hundred five thousand, four hundred twenty-seven".