8840139 has 48 divisors (see below), whose sum is σ = 15321600. Its totient is φ = 4527600.

The previous prime is 8840137. The next prime is 8840141. The reversal of 8840139 is 9310488.

It is an interprime number because it is at equal distance from previous prime (8840137) and next prime (8840141).

It is not a de Polignac number, because 8840139 - 2¹ = 8840137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (8840131) 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 47 ways as a sum of consecutive naturals, for example, 124474 + ... + 124544.

It is an arithmetic number, because the mean of its divisors is an integer number (319200).

Almost surely, 2^8840139 is an apocalyptic number.

8840139 is a deficient number, since it is larger than the sum of its proper divisors (6481461).

8840139 is a wasteful number, since it uses less digits than its factorization.

8840139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 8840139 is about 2973.2371247514. The cubic root of 8840139 is about 206.7694462179.

The spelling of 8840139 in words is "eight million, eight hundred forty thousand, one hundred thirty-nine".