28994398 has 16 divisors (see below), whose sum is σ = 46130976. Its totient is φ = 13638240.

The previous prime is 28994389. The next prime is 28994417. The reversal of 28994398 is 89349982.

It is a congruent number.

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, 2361 + ... + 7972.

It is an arithmetic number, because the mean of its divisors is an integer number (2883186).

Almost surely, 2^28994398 is an apocalyptic number.

28994398 is a deficient number, since it is larger than the sum of its proper divisors (17136578).

28994398 is a wasteful number, since it uses less digits than its factorization.

28994398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10419.

The product of its digits is 1119744, while the sum is 52.

The square root of 28994398 is about 5384.6446493710. The cubic root of 28994398 is about 307.2118983994.

It can be divided in two parts, 28994 and 398, that added together give a palindrome (29392).

The spelling of 28994398 in words is "twenty-eight million, nine hundred ninety-four thousand, three hundred ninety-eight".