42295978 has 16 divisors (see below), whose sum is σ = 66562560. Its totient is φ = 20129200.

The previous prime is 42295963. The next prime is 42295991. The reversal of 42295978 is 87959224.

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 7 ways as a sum of consecutive naturals, for example, 1018 + ... + 9253.

It is an arithmetic number, because the mean of its divisors is an integer number (4160160).

Almost surely, 2^42295978 is an apocalyptic number.

42295978 is a deficient number, since it is larger than the sum of its proper divisors (24266582).

42295978 is a wasteful number, since it uses less digits than its factorization.

42295978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10373.

The product of its digits is 362880, while the sum is 46.

The square root of 42295978 is about 6503.5358075435. The cubic root of 42295978 is about 348.4172836025.

The spelling of 42295978 in words is "forty-two million, two hundred ninety-five thousand, nine hundred seventy-eight".