28614900438 has 24 divisors (see below), whose sum is σ = 64694558448. Its totient is φ = 9123591312.

The previous prime is 28614900407. The next prime is 28614900439. The reversal of 28614900438 is 83400941682.

It is a happy number.

28614900438 is a `hidden beast` number, since 28 + 614 + 9 + 0 + 0 + 4 + 3 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 28614900393 and 28614900402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28614900439) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 34558645 + ... + 34559472.

It is an arithmetic number, because the mean of its divisors is an integer number (2695606602).

Almost surely, 2^28614900438 is an apocalyptic number.

28614900438 is an abundant number, since it is smaller than the sum of its proper divisors (36079658010).

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

28614900438 is a wasteful number, since it uses less digits than its factorization.

28614900438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69118148 (or 69118145 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 28614900438 in words is "twenty-eight billion, six hundred fourteen million, nine hundred thousand, four hundred thirty-eight".