42273994 has 8 divisors (see below), whose sum is σ = 72469728. Its totient is φ = 18117420.

The previous prime is 42273991. The next prime is 42274003. The reversal of 42273994 is 49937224.

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

It is not an unprimeable number, because it can be changed into a prime (42273991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1509772 + ... + 1509799.

It is an arithmetic number, because the mean of its divisors is an integer number (9058716).

Almost surely, 2^42273994 is an apocalyptic number.

42273994 is a deficient number, since it is larger than the sum of its proper divisors (30195734).

42273994 is a wasteful number, since it uses less digits than its factorization.

42273994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3019580.

The product of its digits is 108864, while the sum is 40.

The square root of 42273994 is about 6501.8454303375. The cubic root of 42273994 is about 348.3569080194.

The spelling of 42273994 in words is "forty-two million, two hundred seventy-three thousand, nine hundred ninety-four".