7366638 has 16 divisors (see below), whose sum is σ = 15241680. Its totient is φ = 2370816.

The previous prime is 7366633. The next prime is 7366651. The reversal of 7366638 is 8366637.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7366596 and 7366605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7366633) 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, 20995 + ... + 21342.

It is an arithmetic number, because the mean of its divisors is an integer number (952605).

Almost surely, 2^7366638 is an apocalyptic number.

7366638 is an abundant number, since it is smaller than the sum of its proper divisors (7875042).

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

7366638 is a wasteful number, since it uses less digits than its factorization.

7366638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42371.

The product of its digits is 108864, while the sum is 39.

The square root of 7366638 is about 2714.1551171589. The cubic root of 7366638 is about 194.5762263370.

Subtracting 7366638 from its reverse (8366637), we obtain a palindrome (999999).

The spelling of 7366638 in words is "seven million, three hundred sixty-six thousand, six hundred thirty-eight".