28001295 has 120 divisors (see below), whose sum is σ = 62569584. Its totient is φ = 11902464.

The previous prime is 28001291. The next prime is 28001297. The reversal of 28001295 is 59210082.

It is not a de Polignac number, because 28001295 - 2² = 28001291 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28001291) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 337324 + ... + 337406.

Almost surely, 2^28001295 is an apocalyptic number.

28001295 is an abundant number, since it is smaller than the sum of its proper divisors (34568289).

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

28001295 is a wasteful number, since it uses less digits than its factorization.

28001295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 28001295 is about 5291.6249867125. The cubic root of 28001295 is about 303.6635785234.

It can be divided in two parts, 2800 and 1295, that added together give a triangular number (4095 = T₉₀).

The spelling of 28001295 in words is "twenty-eight million, one thousand, two hundred ninety-five".