28295460 has 96 divisors (see below), whose sum is σ = 89577600. Its totient is φ = 7413120.

The previous prime is 28295459. The next prime is 28295461. The reversal of 28295460 is 6459282.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28295459) and next prime (28295461).

It is a super-2 number, since 2×28295460² = 1601266113223200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (28295461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32511 + ... + 33369.

It is an arithmetic number, because the mean of its divisors is an integer number (933100).

Almost surely, 2^28295460 is an apocalyptic number.

28295460 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 28295460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44788800).

28295460 is an abundant number, since it is smaller than the sum of its proper divisors (61282140).

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

28295460 is a wasteful number, since it uses less digits than its factorization.

28295460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938 (or 930 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 28295460 is about 5319.3477043713. The cubic root of 28295460 is about 304.7232462203.

The spelling of 28295460 in words is "twenty-eight million, two hundred ninety-five thousand, four hundred sixty".