28206408 has 16 divisors (see below), whose sum is σ = 70516080. Its totient is φ = 9402128.

The previous prime is 28206403. The next prime is 28206413. The reversal of 28206408 is 80460282.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28206403) and next prime (28206413).

It is not an unprimeable number, because it can be changed into a prime (28206403) 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, 587610 + ... + 587657.

It is an arithmetic number, because the mean of its divisors is an integer number (4407255).

Almost surely, 2^28206408 is an apocalyptic number.

It is an amenable number.

28206408 is an abundant number, since it is smaller than the sum of its proper divisors (42309672).

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

28206408 is a wasteful number, since it uses less digits than its factorization.

28206408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175276 (or 1175272 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 28206408 is about 5310.9705327746. The cubic root of 28206408 is about 304.4032333717.

The spelling of 28206408 in words is "twenty-eight million, two hundred six thousand, four hundred eight".