28392274338 has 8 divisors (see below), whose sum is σ = 56784548688. Its totient is φ = 9464091444.

The previous prime is 28392274303. The next prime is 28392274387. The reversal of 28392274338 is 83347229382.

It is a happy number.

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

28392274338 is an admirable number.

It is a super-2 number, since 2×28392274338² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2366022856 + ... + 2366022867.

It is an arithmetic number, because the mean of its divisors is an integer number (7098068586).

Almost surely, 2^28392274338 is an apocalyptic number.

28392274338 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.

28392274338 is a wasteful number, since it uses less digits than its factorization.

28392274338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4732045728.

The product of its digits is 3483648, while the sum is 51.

The spelling of 28392274338 in words is "twenty-eight billion, three hundred ninety-two million, two hundred seventy-four thousand, three hundred thirty-eight".