42242894 has 8 divisors (see below), whose sum is σ = 65408448. Its totient is φ = 20440080.

The previous prime is 42242887. The next prime is 42242911. The reversal of 42242894 is 49824224.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340607 + ... + 340730.

It is an arithmetic number, because the mean of its divisors is an integer number (8176056).

Almost surely, 2^42242894 is an apocalyptic number.

42242894 is a deficient number, since it is larger than the sum of its proper divisors (23165554).

42242894 is a wasteful number, since it uses less digits than its factorization.

42242894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681370.

The product of its digits is 36864, while the sum is 35.

The square root of 42242894 is about 6499.4533616297. The cubic root of 42242894 is about 348.2714610211.

The spelling of 42242894 in words is "forty-two million, two hundred forty-two thousand, eight hundred ninety-four".