40876989 has 4 divisors (see below), whose sum is σ = 54502656. Its totient is φ = 27251324.

The previous prime is 40876987. The next prime is 40877009. The reversal of 40876989 is 98967804.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40876989 - 2¹ = 40876987 is a prime.

It is a super-2 number, since 2×40876989² = 3341856459412242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40876987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6812829 + ... + 6812834.

It is an arithmetic number, because the mean of its divisors is an integer number (13625664).

Almost surely, 2^40876989 is an apocalyptic number.

It is an amenable number.

40876989 is a deficient number, since it is larger than the sum of its proper divisors (13625667).

40876989 is a wasteful number, since it uses less digits than its factorization.

40876989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13625666.

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 40876989 is about 6393.5114764893. The cubic root of 40876989 is about 344.4765260171.

The spelling of 40876989 in words is "forty million, eight hundred seventy-six thousand, nine hundred eighty-nine".