40442066 has 16 divisors (see below), whose sum is σ = 71720640. Its totient is φ = 16734480.

The previous prime is 40442063. The next prime is 40442111. The reversal of 40442066 is 66024404.

It is not an unprimeable number, because it can be changed into a prime (40442063) 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 7 ways as a sum of consecutive naturals, for example, 49400 + ... + 50211.

It is an arithmetic number, because the mean of its divisors is an integer number (4482540).

Almost surely, 2^40442066 is an apocalyptic number.

40442066 is a deficient number, since it is larger than the sum of its proper divisors (31278574).

40442066 is a wasteful number, since it uses less digits than its factorization.

40442066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99649.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 40442066 is about 6359.4076768202. The cubic root of 40442066 is about 343.2504467858.

The spelling of 40442066 in words is "forty million, four hundred forty-two thousand, sixty-six".