28030053404 has 24 divisors (see below), whose sum is σ = 49390341168. Its totient is φ = 13918619520.

The previous prime is 28030053391. The next prime is 28030053427. The reversal of 28030053404 is 40435003082.

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, 1341719 + ... + 1362449.

It is an arithmetic number, because the mean of its divisors is an integer number (2057930882).

Almost surely, 2^28030053404 is an apocalyptic number.

It is an amenable number.

28030053404 is a deficient number, since it is larger than the sum of its proper divisors (21360287764).

28030053404 is a wasteful number, since it uses less digits than its factorization.

28030053404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23045 (or 23043 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 28030053404 its reverse (40435003082), we get a palindrome (68465056486).

The spelling of 28030053404 in words is "twenty-eight billion, thirty million, fifty-three thousand, four hundred four".