40135768 has 16 divisors (see below), whose sum is σ = 77850000. Its totient is φ = 19375776.

The previous prime is 40135741. The next prime is 40135769. The reversal of 40135768 is 86753104.

It is a super-2 number, since 2×40135768² = 3221759745899648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40135769) 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 3 ways as a sum of consecutive naturals, for example, 86268 + ... + 86731.

It is an arithmetic number, because the mean of its divisors is an integer number (4865625).

Almost surely, 2^40135768 is an apocalyptic number.

It is an amenable number.

40135768 is a deficient number, since it is larger than the sum of its proper divisors (37714232).

40135768 is a wasteful number, since it uses less digits than its factorization.

40135768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173034 (or 173030 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 40135768 is about 6335.2796307661. The cubic root of 40135768 is about 342.3816857398.

The spelling of 40135768 in words is "forty million, one hundred thirty-five thousand, seven hundred sixty-eight".