9440139 has 8 divisors (see below), whose sum is σ = 12601152. Its totient is φ = 6286280.

The previous prime is 9440113. The next prime is 9440149. The reversal of 9440139 is 9310449.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9440139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9440149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3712 + ... + 5714.

It is an arithmetic number, because the mean of its divisors is an integer number (1575144).

Almost surely, 2^9440139 is an apocalyptic number.

9440139 is a deficient number, since it is larger than the sum of its proper divisors (3161013).

9440139 is a wasteful number, since it uses less digits than its factorization.

9440139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3577.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 9440139 is about 3072.4809193875. The cubic root of 9440139 is about 211.3453983654.

The spelling of 9440139 in words is "nine million, four hundred forty thousand, one hundred thirty-nine".