28347450 has 24 divisors (see below), whose sum is σ = 70302048. Its totient is φ = 7559280.

The previous prime is 28347443. The next prime is 28347463. The reversal of 28347450 is 5474382.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94342 + ... + 94641.

It is an arithmetic number, because the mean of its divisors is an integer number (2929252).

Almost surely, 2^28347450 is an apocalyptic number.

28347450 is an abundant number, since it is smaller than the sum of its proper divisors (41954598).

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

28347450 is a wasteful number, since it uses less digits than its factorization.

28347450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188998 (or 188993 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 28347450 is about 5324.2323390325. The cubic root of 28347450 is about 304.9097645809.

The spelling of 28347450 in words is "twenty-eight million, three hundred forty-seven thousand, four hundred fifty".