28394900352 has 1024 divisors, whose sum is σ = 112521830400. Its totient is φ = 6837239808.

The previous prime is 28394900351. The next prime is 28394900353. The reversal of 28394900352 is 25300949382.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28394900351) and next prime (28394900353).

It is a junction number, because it is equal to n+sod(n) for n = 28394900298 and 28394900307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28394900351) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 251282248 + ... + 251282360.

It is an arithmetic number, because the mean of its divisors is an integer number (109884600).

Almost surely, 2^28394900352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28394900352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56260915200).

28394900352 is an abundant number, since it is smaller than the sum of its proper divisors (84126930048).

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

28394900352 is a wasteful number, since it uses less digits than its factorization.

28394900352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 28394900352 in words is "twenty-eight billion, three hundred ninety-four million, nine hundred thousand, three hundred fifty-two".