40159926 has 12 divisors (see below), whose sum is σ = 87013212. Its totient is φ = 13386636.

The previous prime is 40159921. The next prime is 40159927. The reversal of 40159926 is 62995104.

40159926 is a `hidden beast` number, since 40 + 1 + 599 + 26 = 666.

40159926 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40159926² = 3225639312650952, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40159921) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1115536 + ... + 1115571.

It is an arithmetic number, because the mean of its divisors is an integer number (7251101).

Almost surely, 2^40159926 is an apocalyptic number.

40159926 is an abundant number, since it is smaller than the sum of its proper divisors (46853286).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40159926 is a wasteful number, since it uses less digits than its factorization.

40159926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2231115 (or 2231112 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 40159926 is about 6337.1859685510. The cubic root of 40159926 is about 342.4503659405.

The spelling of 40159926 in words is "forty million, one hundred fifty-nine thousand, nine hundred twenty-six".