40160736 has 144 divisors (see below), whose sum is σ = 142466688. Its totient is φ = 10425600.

The previous prime is 40160719. The next prime is 40160741. The reversal of 40160736 is 63706104.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×40160736² = 3225769432123392, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21271 + ... + 23081.

It is an arithmetic number, because the mean of its divisors is an integer number (989352).

Almost surely, 2^40160736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40160736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71233344).

40160736 is an abundant number, since it is smaller than the sum of its proper divisors (102305952).

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

40160736 is a wasteful number, since it uses less digits than its factorization.

40160736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1845 (or 1834 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 40160736 is about 6337.2498767210. The cubic root of 40160736 is about 342.4526682599.

The spelling of 40160736 in words is "forty million, one hundred sixty thousand, seven hundred thirty-six".