42423278 has 8 divisors (see below), whose sum is σ = 63740568. Its totient is φ = 21176424.

The previous prime is 42423263. The next prime is 42423289. The reversal of 42423278 is 87232424.

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

It is a Curzon number.

It is a congruent number.

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, 16076 + ... + 18527.

It is an arithmetic number, because the mean of its divisors is an integer number (7967571).

Almost surely, 2^42423278 is an apocalyptic number.

42423278 is a deficient number, since it is larger than the sum of its proper divisors (21317290).

42423278 is a wasteful number, since it uses less digits than its factorization.

42423278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35218.

The product of its digits is 21504, while the sum is 32.

The square root of 42423278 is about 6513.3154383923. The cubic root of 42423278 is about 348.7664822655.

The spelling of 42423278 in words is "forty-two million, four hundred twenty-three thousand, two hundred seventy-eight".