28052237304 has 256 divisors, whose sum is σ = 96171264000. Its totient is φ = 7377868800.

The previous prime is 28052237287. The next prime is 28052237309. The reversal of 28052237304 is 40373225082.

28052237304 is a `hidden beast` number, since 280 + 5 + 2 + 2 + 373 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28052237309) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7880277 + ... + 7883835.

It is an arithmetic number, because the mean of its divisors is an integer number (375669000).

Almost surely, 2^28052237304 is an apocalyptic number.

28052237304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28052237304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48085632000).

28052237304 is an abundant number, since it is smaller than the sum of its proper divisors (68119026696).

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

28052237304 is a wasteful number, since it uses less digits than its factorization.

28052237304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3995 (or 3985 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

It can be divided in two parts, 28052 and 237304, that added together give a triangular number (265356 = T₇₂₈).

The spelling of 28052237304 in words is "twenty-eight billion, fifty-two million, two hundred thirty-seven thousand, three hundred four".