7638244 has 6 divisors (see below), whose sum is σ = 13366934. Its totient is φ = 3819120.

The previous prime is 7638233. The next prime is 7638269. The reversal of 7638244 is 4428367.

It can be written as a sum of positive squares in only one way, i.e., 5198400 + 2439844 = 2280^2 + 1562^2 .

It is a d-powerful number, because it can be written as 7⁸ + 6⁸ + 3¹¹ + 8 + 2⁵ + 4⁴ + 4⁷ .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 954777 + ... + 954784.

Almost surely, 2^7638244 is an apocalyptic number.

It is an amenable number.

7638244 is a deficient number, since it is larger than the sum of its proper divisors (5728690).

7638244 is a wasteful number, since it uses less digits than its factorization.

7638244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909565 (or 1909563 counting only the distinct ones).

The product of its digits is 32256, while the sum is 34.

The square root of 7638244 is about 2763.7373247109. The cubic root of 7638244 is about 196.9387494569.

The spelling of 7638244 in words is "seven million, six hundred thirty-eight thousand, two hundred forty-four".