28954338 has 16 divisors (see below), whose sum is σ = 66181440. Its totient is φ = 8272656.

The previous prime is 28954333. The next prime is 28954339. The reversal of 28954338 is 83345982.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 689389 = 28954338 / (2 + 8 + 9 + 5 + 4 + 3 + 3 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 28954338.

It is not an unprimeable number, because it can be changed into a prime (28954333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344653 + ... + 344736.

It is an arithmetic number, because the mean of its divisors is an integer number (4136340).

Almost surely, 2^28954338 is an apocalyptic number.

28954338 is an abundant number, since it is smaller than the sum of its proper divisors (37227102).

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

28954338 is a wasteful number, since it uses less digits than its factorization.

28954338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689401.

The product of its digits is 207360, while the sum is 42.

The square root of 28954338 is about 5380.9235266820. The cubic root of 28954338 is about 307.0703471368.

It can be divided in two parts, 28954 and 338, that added together give a palindrome (29292).

The spelling of 28954338 in words is "twenty-eight million, nine hundred fifty-four thousand, three hundred thirty-eight".