40869885 has 32 divisors (see below), whose sum is σ = 75479040. Its totient is φ = 18497088.

The previous prime is 40869869. The next prime is 40869889. The reversal of 40869885 is 58896804.

It is not a de Polignac number, because 40869885 - 2⁴ = 40869869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40869889) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8926 + ... + 12704.

It is an arithmetic number, because the mean of its divisors is an integer number (2358720).

Almost surely, 2^40869885 is an apocalyptic number.

It is an amenable number.

40869885 is a deficient number, since it is larger than the sum of its proper divisors (34609155).

40869885 is a wasteful number, since it uses less digits than its factorization.

40869885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3897.

The product of its (nonzero) digits is 552960, while the sum is 48.

The square root of 40869885 is about 6392.9558891017. The cubic root of 40869885 is about 344.4565693693.

The spelling of 40869885 in words is "forty million, eight hundred sixty-nine thousand, eight hundred eighty-five".