28626422 has 24 divisors (see below), whose sum is σ = 48837600. Its totient is φ = 12560240.

The previous prime is 28626401. The next prime is 28626427. The reversal of 28626422 is 22462682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28626427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4979 + ... + 9057.

It is an arithmetic number, because the mean of its divisors is an integer number (2034900).

Almost surely, 2^28626422 is an apocalyptic number.

28626422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28626422 is a deficient number, since it is larger than the sum of its proper divisors (20211178).

28626422 is a wasteful number, since it uses less digits than its factorization.

28626422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4132 (or 4121 counting only the distinct ones).

The product of its digits is 18432, while the sum is 32.

The square root of 28626422 is about 5350.3665295006. The cubic root of 28626422 is about 305.9067239588.

The spelling of 28626422 in words is "twenty-eight million, six hundred twenty-six thousand, four hundred twenty-two".