7044138 has 16 divisors (see below), whose sum is σ = 15653760. Its totient is φ = 2348028.

The previous prime is 7044133. The next prime is 7044139. The reversal of 7044138 is 8314407.

It is a super-3 number, since 3×7044138³ (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (7044133) 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, 65170 + ... + 65277.

It is an arithmetic number, because the mean of its divisors is an integer number (978360).

Almost surely, 2^7044138 is an apocalyptic number.

7044138 is an abundant number, since it is smaller than the sum of its proper divisors (8609622).

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

7044138 is a wasteful number, since it uses less digits than its factorization.

7044138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130458 (or 130452 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 7044138 is about 2654.0795014468. The cubic root of 7044138 is about 191.6943378658.

The spelling of 7044138 in words is "seven million, forty-four thousand, one hundred thirty-eight".