42079976 has 8 divisors (see below), whose sum is σ = 78899970. Its totient is φ = 21039984.

The previous prime is 42079967. The next prime is 42079979. The reversal of 42079976 is 67997024.

It can be written as a sum of positive squares in only one way, i.e., 40576900 + 1503076 = 6370^2 + 1226^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (42079979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2629991 + ... + 2630006.

Almost surely, 2^42079976 is an apocalyptic number.

It is an amenable number.

42079976 is a deficient number, since it is larger than the sum of its proper divisors (36819994).

42079976 is a wasteful number, since it uses less digits than its factorization.

42079976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5260003 (or 5259999 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 42079976 is about 6486.9080462112. The cubic root of 42079976 is about 347.8231584880.

The spelling of 42079976 in words is "forty-two million, seventy-nine thousand, nine hundred seventy-six".