28938026 has 16 divisors (see below), whose sum is σ = 49207200. Its totient is φ = 12652848.

The previous prime is 28938001. The next prime is 28938047. The reversal of 28938026 is 62083982.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28796 + ... + 29783.

It is an arithmetic number, because the mean of its divisors is an integer number (3075450).

Almost surely, 2^28938026 is an apocalyptic number.

28938026 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28938026 is a deficient number, since it is larger than the sum of its proper divisors (20269174).

28938026 is a wasteful number, since it uses less digits than its factorization.

28938026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58613.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 28938026 is about 5379.4075882015. The cubic root of 28938026 is about 307.0126715831.

The spelling of 28938026 in words is "twenty-eight million, nine hundred thirty-eight thousand, twenty-six".