8949138 has 16 divisors (see below), whose sum is σ = 19525536. Its totient is φ = 2711840.

The previous prime is 8949131. The next prime is 8949151. The reversal of 8949138 is 8319498.

It is a self number, because there is not a number n which added to its sum of digits gives 8949138.

It is not an unprimeable number, because it can be changed into a prime (8949131) 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, 67731 + ... + 67862.

It is an arithmetic number, because the mean of its divisors is an integer number (1220346).

Almost surely, 2^8949138 is an apocalyptic number.

8949138 is an abundant number, since it is smaller than the sum of its proper divisors (10576398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8949138 is a wasteful number, since it uses less digits than its factorization.

8949138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135609.

The product of its digits is 62208, while the sum is 42.

The square root of 8949138 is about 2991.5109894500. The cubic root of 8949138 is about 207.6158002683.

The spelling of 8949138 in words is "eight million, nine hundred forty-nine thousand, one hundred thirty-eight".