42050979 has 12 divisors (see below), whose sum is σ = 64313496. Its totient is φ = 26384832.

The previous prime is 42050977. The next prime is 42050999. The reversal of 42050979 is 97905024.

It is not a de Polignac number, because 42050979 - 2¹ = 42050977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42050977) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 137269 + ... + 137574.

It is an arithmetic number, because the mean of its divisors is an integer number (5359458).

Almost surely, 2^42050979 is an apocalyptic number.

42050979 is a deficient number, since it is larger than the sum of its proper divisors (22262517).

42050979 is a wasteful number, since it uses less digits than its factorization.

42050979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274866 (or 274863 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 42050979 is about 6484.6726208807. The cubic root of 42050979 is about 347.7432460082.

The spelling of 42050979 in words is "forty-two million, fifty thousand, nine hundred seventy-nine".