28406024144 has 20 divisors (see below), whose sum is σ = 57429571296. Its totient is φ = 13585489632.

The previous prime is 28406024131. The next prime is 28406024173. The reversal of 28406024144 is 44142060482.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38594774 + ... + 38595509.

Almost surely, 2^28406024144 is an apocalyptic number.

It is an amenable number.

28406024144 is an abundant number, since it is smaller than the sum of its proper divisors (29023547152).

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

28406024144 is a wasteful number, since it uses less digits than its factorization.

28406024144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77190314 (or 77190308 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 35.

The spelling of 28406024144 in words is "twenty-eight billion, four hundred six million, twenty-four thousand, one hundred forty-four".