28001050 has 72 divisors (see below), whose sum is σ = 66156480. Its totient is φ = 8719200.

The previous prime is 28001047. The next prime is 28001053. The reversal of 28001050 is 5010082.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28001047) and next prime (28001053).

It is a super-2 number, since 2×28001050² = 1568117602205000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28001053) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 26431 + ... + 27469.

It is an arithmetic number, because the mean of its divisors is an integer number (918840).

Almost surely, 2^28001050 is an apocalyptic number.

28001050 is an abundant number, since it is smaller than the sum of its proper divisors (38155430).

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

28001050 is a wasteful number, since it uses less digits than its factorization.

28001050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076 (or 1064 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 28001050 is about 5291.6018368732. The cubic root of 28001050 is about 303.6626928763.

The spelling of 28001050 in words is "twenty-eight million, one thousand, fifty".