10240989 has 8 divisors (see below), whose sum is σ = 14896032. Its totient is φ = 6206640.

The previous prime is 10240961. The next prime is 10241027. The reversal of 10240989 is 98904201.

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

It is not a de Polignac number, because 10240989 - 2⁷ = 10240861 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 310333 = 10240989 / (1 + 0 + 2 + 4 + 0 + 9 + 8 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10240949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155134 + ... + 155199.

It is an arithmetic number, because the mean of its divisors is an integer number (1862004).

Almost surely, 2^10240989 is an apocalyptic number.

It is an amenable number.

10240989 is a deficient number, since it is larger than the sum of its proper divisors (4655043).

10240989 is a wasteful number, since it uses less digits than its factorization.

10240989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310347.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 10240989 is about 3200.1545275189. The cubic root of 10240989 is about 217.1604001417.

The spelling of 10240989 in words is "ten million, two hundred forty thousand, nine hundred eighty-nine".