22048638 has 8 divisors (see below), whose sum is σ = 44097288. Its totient is φ = 7349544.

The previous prime is 22048627. The next prime is 22048639. The reversal of 22048638 is 83684022.

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

22048638 is an admirable number.

It is a super-2 number, since 2×22048638² = 972284875310088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22048599 and 22048608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22048639) 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, 1837381 + ... + 1837392.

It is an arithmetic number, because the mean of its divisors is an integer number (5512161).

Almost surely, 2^22048638 is an apocalyptic number.

22048638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22048638 is a wasteful number, since it uses less digits than its factorization.

22048638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3674778.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 22048638 is about 4695.5977255297. The cubic root of 22048638 is about 280.4102743957.

The spelling of 22048638 in words is "twenty-two million, forty-eight thousand, six hundred thirty-eight".