42427279 has 8 divisors (see below), whose sum is σ = 43076880. Its totient is φ = 41781696.

The previous prime is 42427243. The next prime is 42427321. The reversal of 42427279 is 97272424.

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 42427279 - 2¹³ = 42419087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42427219) 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, 25264 + ... + 26890.

It is an arithmetic number, because the mean of its divisors is an integer number (5384610).

Almost surely, 2^42427279 is an apocalyptic number.

42427279 is a deficient number, since it is larger than the sum of its proper divisors (649601).

42427279 is a wasteful number, since it uses less digits than its factorization.

42427279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009.

The product of its digits is 56448, while the sum is 37.

The square root of 42427279 is about 6513.6225711965. The cubic root of 42427279 is about 348.7774461427. Note that the first 3 decimals are identical.

The spelling of 42427279 in words is "forty-two million, four hundred twenty-seven thousand, two hundred seventy-nine".