40059643 has 16 divisors (see below), whose sum is σ = 45410400. Its totient is φ = 35078400.

The previous prime is 40059631. The next prime is 40059653. The reversal of 40059643 is 34695004.

It is not a de Polignac number, because 40059643 - 2²⁵ = 6505211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40059653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21343 + ... + 23143.

It is an arithmetic number, because the mean of its divisors is an integer number (2838150).

Almost surely, 2^40059643 is an apocalyptic number.

40059643 is a deficient number, since it is larger than the sum of its proper divisors (5350757).

40059643 is a wasteful number, since it uses less digits than its factorization.

40059643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 40059643 is about 6329.2687571314. The cubic root of 40059643 is about 342.1650850798.

The spelling of 40059643 in words is "forty million, fifty-nine thousand, six hundred forty-three".