28295430 has 32 divisors (see below), whose sum is σ = 68774400. Its totient is φ = 7449312.

The previous prime is 28295383. The next prime is 28295431. The reversal of 28295430 is 3459282.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28295391 and 28295400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28295431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3600 + ... + 8339.

It is an arithmetic number, because the mean of its divisors is an integer number (2149200).

Almost surely, 2^28295430 is an apocalyptic number.

28295430 is an abundant number, since it is smaller than the sum of its proper divisors (40478970).

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

28295430 is a wasteful number, since it uses less digits than its factorization.

28295430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12028.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 28295430 is about 5319.3448844759. The cubic root of 28295430 is about 304.7231385269.

The spelling of 28295430 in words is "twenty-eight million, two hundred ninety-five thousand, four hundred thirty".