28262838 has 8 divisors (see below), whose sum is σ = 56525688. Its totient is φ = 9420944.

The previous prime is 28262831. The next prime is 28262863. The reversal of 28262838 is 83826282.

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

28262838 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 28262796 and 28262805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28262831) 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, 2355231 + ... + 2355242.

It is an arithmetic number, because the mean of its divisors is an integer number (7065711).

Almost surely, 2^28262838 is an apocalyptic number.

28262838 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.

28262838 is a wasteful number, since it uses less digits than its factorization.

28262838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4710478.

The product of its digits is 73728, while the sum is 39.

The square root of 28262838 is about 5316.2804666421. The cubic root of 28262838 is about 304.6060954546.

The spelling of 28262838 in words is "twenty-eight million, two hundred sixty-two thousand, eight hundred thirty-eight".