40889899 has 8 divisors (see below), whose sum is σ = 42841088. Its totient is φ = 38978280.

The previous prime is 40889839. The next prime is 40889903. The reversal of 40889899 is 99898804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40889899 - 2²⁵ = 7335467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40889819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7767 + ... + 11920.

It is an arithmetic number, because the mean of its divisors is an integer number (5355136).

Almost surely, 2^40889899 is an apocalyptic number.

40889899 is a deficient number, since it is larger than the sum of its proper divisors (1951189).

40889899 is a wasteful number, since it uses less digits than its factorization.

40889899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19785.

The product of its (nonzero) digits is 1492992, while the sum is 55.

The square root of 40889899 is about 6394.5210141183. The cubic root of 40889899 is about 344.5127870363.

The spelling of 40889899 in words is "forty million, eight hundred eighty-nine thousand, eight hundred ninety-nine".