28103422 has 16 divisors (see below), whose sum is σ = 43972992. Its totient is φ = 13455360.

The previous prime is 28103419. The next prime is 28103423. The reversal of 28103422 is 22430182.

It is a super-2 number, since 2×28103422² = 1579604656220168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28103393 and 28103402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28103423) 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, 3678 + ... + 8350.

It is an arithmetic number, because the mean of its divisors is an integer number (2748312).

Almost surely, 2^28103422 is an apocalyptic number.

28103422 is a deficient number, since it is larger than the sum of its proper divisors (15869570).

28103422 is a wasteful number, since it uses less digits than its factorization.

28103422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4803.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 28103422 is about 5301.2660751937. The cubic root of 28103422 is about 304.0323069890.

The spelling of 28103422 in words is "twenty-eight million, one hundred three thousand, four hundred twenty-two".