40056142 has 16 divisors (see below), whose sum is σ = 72282240. Its totient is φ = 16263288.

The previous prime is 40056073. The next prime is 40056167. The reversal of 40056142 is 24165004.

40056142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75028 + ... + 75559.

It is an arithmetic number, because the mean of its divisors is an integer number (4517640).

Almost surely, 2^40056142 is an apocalyptic number.

40056142 is a deficient number, since it is larger than the sum of its proper divisors (32226098).

40056142 is a wasteful number, since it uses less digits than its factorization.

40056142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150615.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 40056142 is about 6328.9921788544. The cubic root of 40056142 is about 342.1551169858.

The spelling of 40056142 in words is "forty million, fifty-six thousand, one hundred forty-two".