40889549 has 4 divisors (see below), whose sum is σ = 40903740. Its totient is φ = 40875360.

The previous prime is 40889543. The next prime is 40889567. The reversal of 40889549 is 94598804.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20187049 + 20702500 = 4493^2 + 4550^2 .

It is a cyclic number.

It is not a de Polignac number, because 40889549 - 2⁴ = 40889533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40889543) 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 3 ways as a sum of consecutive naturals, for example, 1064 + ... + 9105.

It is an arithmetic number, because the mean of its divisors is an integer number (10225935).

Almost surely, 2^40889549 is an apocalyptic number.

It is an amenable number.

40889549 is a deficient number, since it is larger than the sum of its proper divisors (14191).

40889549 is a wasteful number, since it uses less digits than its factorization.

40889549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14190.

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 40889549 is about 6394.4936468809. The cubic root of 40889549 is about 344.5118040730.

The spelling of 40889549 in words is "forty million, eight hundred eighty-nine thousand, five hundred forty-nine".