40342136 has 32 divisors (see below), whose sum is σ = 78792240. Its totient is φ = 19346688.

The previous prime is 40342123. The next prime is 40342151. The reversal of 40342136 is 63124304.

It is a happy number.

40342136 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, 20675 + ... + 22541.

Almost surely, 2^40342136 is an apocalyptic number.

It is an amenable number.

40342136 is a deficient number, since it is larger than the sum of its proper divisors (38450104).

40342136 is a wasteful number, since it uses less digits than its factorization.

40342136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983 (or 1979 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 40342136 is about 6351.5459535455. The cubic root of 40342136 is about 342.9674962895.

The spelling of 40342136 in words is "forty million, three hundred forty-two thousand, one hundred thirty-six".