42294971 has 4 divisors (see below), whose sum is σ = 43194912. Its totient is φ = 41395032.

The previous prime is 42294919. The next prime is 42294979. The reversal of 42294971 is 17949224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42294971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42294979) 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, 449900 + ... + 449993.

It is an arithmetic number, because the mean of its divisors is an integer number (10798728).

Almost surely, 2^42294971 is an apocalyptic number.

42294971 is a deficient number, since it is larger than the sum of its proper divisors (899941).

42294971 is an equidigital number, since it uses as much as digits as its factorization.

42294971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899940.

The product of its digits is 36288, while the sum is 38.

The square root of 42294971 is about 6503.4583876581. The cubic root of 42294971 is about 348.4145184934.

The spelling of 42294971 in words is "forty-two million, two hundred ninety-four thousand, nine hundred seventy-one".