28338882428 has 48 divisors (see below), whose sum is σ = 52966851840. Its totient is φ = 13220285184.

The previous prime is 28338882427. The next prime is 28338882431. The reversal of 28338882428 is 82428883382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28338882421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7777175 + ... + 7780817.

It is an arithmetic number, because the mean of its divisors is an integer number (1103476080).

Almost surely, 2^28338882428 is an apocalyptic number.

It is an amenable number.

28338882428 is a deficient number, since it is larger than the sum of its proper divisors (24627969412).

28338882428 is a wasteful number, since it uses less digits than its factorization.

28338882428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4626 (or 4624 counting only the distinct ones).

The product of its digits is 9437184, while the sum is 56.

The spelling of 28338882428 in words is "twenty-eight billion, three hundred thirty-eight million, eight hundred eighty-two thousand, four hundred twenty-eight".