28041298740 has 384 divisors, whose sum is σ = 108856581120. Its totient is φ = 5834612736.

The previous prime is 28041298711. The next prime is 28041298741. The reversal of 28041298740 is 4789214082.

28041298740 is a `hidden beast` number, since 2 + 80 + 412 + 98 + 74 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28041298741) 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, 3583312 + ... + 3591128.

It is an arithmetic number, because the mean of its divisors is an integer number (283480680).

Almost surely, 2^28041298740 is an apocalyptic number.

28041298740 is a gapful number since it is divisible by the number (20) 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 28041298740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54428290560).

28041298740 is an abundant number, since it is smaller than the sum of its proper divisors (80815282380).

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

28041298740 is a wasteful number, since it uses less digits than its factorization.

28041298740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7928 (or 7920 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 28041298740 in words is "twenty-eight billion, forty-one million, two hundred ninety-eight thousand, seven hundred forty".