28054950 has 144 divisors (see below), whose sum is σ = 88547904. Its totient is φ = 5812800.

The previous prime is 28054931. The next prime is 28054951. The reversal of 28054950 is 5945082.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28054951) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 80677 + ... + 81023.

It is an arithmetic number, because the mean of its divisors is an integer number (614916).

Almost surely, 2^28054950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28054950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44273952).

28054950 is an abundant number, since it is smaller than the sum of its proper divisors (60492954).

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

28054950 is a wasteful number, since it uses less digits than its factorization.

28054950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 28054950 is about 5296.6923641080. The cubic root of 28054950 is about 303.8574109117.

The spelling of 28054950 in words is "twenty-eight million, fifty-four thousand, nine hundred fifty".