28622276 has 12 divisors (see below), whose sum is σ = 50127420. Its totient is φ = 14300160.

The previous prime is 28622267. The next prime is 28622287. The reversal of 28622276 is 67222682.

It can be written as a sum of positive squares in 2 ways, for example, as 14364100 + 14258176 = 3790^2 + 3776^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6836 + ... + 10196.

It is an arithmetic number, because the mean of its divisors is an integer number (4177285).

Almost surely, 2^28622276 is an apocalyptic number.

It is an amenable number.

28622276 is a deficient number, since it is larger than the sum of its proper divisors (21505144).

28622276 is a wasteful number, since it uses less digits than its factorization.

28622276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5494 (or 5492 counting only the distinct ones).

The product of its digits is 32256, while the sum is 35.

The square root of 28622276 is about 5349.9790653796. The cubic root of 28622276 is about 305.8919549631.

The spelling of 28622276 in words is "twenty-eight million, six hundred twenty-two thousand, two hundred seventy-six".