40889289 has 8 divisors (see below), whose sum is σ = 62307520. Its totient is φ = 23365296.

The previous prime is 40889281. The next prime is 40889297. The reversal of 40889289 is 98298804.

It is an interprime number because it is at equal distance from previous prime (40889281) and next prime (40889297).

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

It is not a de Polignac number, because 40889289 - 2³ = 40889281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40889281) 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, 973534 + ... + 973575.

It is an arithmetic number, because the mean of its divisors is an integer number (7788440).

Almost surely, 2^40889289 is an apocalyptic number.

It is an amenable number.

40889289 is a deficient number, since it is larger than the sum of its proper divisors (21418231).

40889289 is a wasteful number, since it uses less digits than its factorization.

40889289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947119.

The product of its (nonzero) digits is 331776, while the sum is 48.

The square root of 40889289 is about 6394.4733168573. The cubic root of 40889289 is about 344.5110738680.

The spelling of 40889289 in words is "forty million, eight hundred eighty-nine thousand, two hundred eighty-nine".