28358762740 has 432 divisors, whose sum is σ = 82376965440. Its totient is φ = 8143027200.

The previous prime is 28358762737. The next prime is 28358762741. The reversal of 28358762740 is 4726785382.

It is a happy number.

It is a super-2 number, since 2×28358762740² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28358762741) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 92373667 + ... + 92373973.

It is an arithmetic number, because the mean of its divisors is an integer number (190687420).

Almost surely, 2^28358762740 is an apocalyptic number.

28358762740 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 28358762740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41188482720).

28358762740 is an abundant number, since it is smaller than the sum of its proper divisors (54018202700).

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

28358762740 is a wasteful number, since it uses less digits than its factorization.

28358762740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 52.

The spelling of 28358762740 in words is "twenty-eight billion, three hundred fifty-eight million, seven hundred sixty-two thousand, seven hundred forty".