40066042 has 16 divisors (see below), whose sum is σ = 65356200. Its totient is φ = 18344448.

The previous prime is 40066031. The next prime is 40066051. The reversal of 40066042 is 24066004.

It can be written as a sum of positive squares in 4 ways, for example, as 40056241 + 9801 = 6329^2 + 99^2 .

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, 14667 + ... + 17182.

Almost surely, 2^40066042 is an apocalyptic number.

40066042 is a deficient number, since it is larger than the sum of its proper divisors (25290158).

40066042 is a wasteful number, since it uses less digits than its factorization.

40066042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31905.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 40066042 is about 6329.7742455794. The cubic root of 40066042 is about 342.1833028974.

The spelling of 40066042 in words is "forty million, sixty-six thousand, forty-two", and thus it is an eban number.