11022638 has 8 divisors (see below), whose sum is σ = 18037080. Its totient is φ = 5010280.

The previous prime is 11022637. The next prime is 11022643. The reversal of 11022638 is 83622011.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11022637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250493 + ... + 250536.

It is an arithmetic number, because the mean of its divisors is an integer number (2254635).

Almost surely, 2^11022638 is an apocalyptic number.

11022638 is a deficient number, since it is larger than the sum of its proper divisors (7014442).

11022638 is a wasteful number, since it uses less digits than its factorization.

11022638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501042.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 11022638 is about 3320.0358431800. The cubic root of 11022638 is about 222.5504695510.

Adding to 11022638 its reverse (83622011), we get a palindrome (94644649).

The spelling of 11022638 in words is "eleven million, twenty-two thousand, six hundred thirty-eight".