42004266 has 16 divisors (see below), whose sum is σ = 84101088. Its totient is φ = 13986000.

The previous prime is 42004219. The next prime is 42004301. The reversal of 42004266 is 66240024.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2976 + ... + 9636.

It is an arithmetic number, because the mean of its divisors is an integer number (5256318).

Almost surely, 2^42004266 is an apocalyptic number.

42004266 is an abundant number, since it is smaller than the sum of its proper divisors (42096822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42004266 is a wasteful number, since it uses less digits than its factorization.

42004266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7717.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 42004266 is about 6481.0698190962. The cubic root of 42004266 is about 347.6144329233.

It can be divided in two parts, 420042 and 66, that multiplied together give a palindrome (27722772).

The spelling of 42004266 in words is "forty-two million, four thousand, two hundred sixty-six".