28950227040 has 288 divisors, whose sum is σ = 111666885120. Its totient is φ = 6268824576.

The previous prime is 28950226997. The next prime is 28950227057. The reversal of 28950227040 is 4072205982.

It is a self number, because there is not a number n which added to its sum of digits gives 28950227040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 414489 + ... + 479271.

It is an arithmetic number, because the mean of its divisors is an integer number (387732240).

Almost surely, 2^28950227040 is an apocalyptic number.

28950227040 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 28950227040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55833442560).

28950227040 is an abundant number, since it is smaller than the sum of its proper divisors (82716658080).

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

28950227040 is a wasteful number, since it uses less digits than its factorization.

28950227040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64834 (or 64819 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 28950227040 in words is "twenty-eight billion, nine hundred fifty million, two hundred twenty-seven thousand, forty".