28243030416 has 20 divisors (see below), whose sum is σ = 72961162032. Its totient is φ = 9414343456.

The previous prime is 28243030411. The next prime is 28243030421. The reversal of 28243030416 is 61403034282.

It is an interprime number because it is at equal distance from previous prime (28243030411) and next prime (28243030421).

It is a super-2 number, since 2×28243030416² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28243030411) 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, 294198186 + ... + 294198281.

Almost surely, 2^28243030416 is an apocalyptic number.

It is an amenable number.

28243030416 is an abundant number, since it is smaller than the sum of its proper divisors (44718131616).

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

28243030416 is a wasteful number, since it uses less digits than its factorization.

28243030416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588396478 (or 588396472 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

Adding to 28243030416 its reverse (61403034282), we get a palindrome (89646064698).

The spelling of 28243030416 in words is "twenty-eight billion, two hundred forty-three million, thirty thousand, four hundred sixteen".