40838889 has 32 divisors (see below), whose sum is σ = 67415040. Its totient is φ = 21413952.

The previous prime is 40838867. The next prime is 40838893. The reversal of 40838889 is 98883804.

It is a happy number.

It is not a de Polignac number, because 40838889 - 2¹¹ = 40836841 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40838489) 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, 61642 + ... + 62300.

It is an arithmetic number, because the mean of its divisors is an integer number (2106720).

Almost surely, 2^40838889 is an apocalyptic number.

It is an amenable number.

40838889 is a deficient number, since it is larger than the sum of its proper divisors (26576151).

40838889 is a wasteful number, since it uses less digits than its factorization.

40838889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909.

The product of its (nonzero) digits is 442368, while the sum is 48.

The square root of 40838889 is about 6390.5311985781. The cubic root of 40838889 is about 344.3694679410.

The spelling of 40838889 in words is "forty million, eight hundred thirty-eight thousand, eight hundred eighty-nine".