28113474 has 8 divisors (see below), whose sum is σ = 56226960. Its totient is φ = 9371156.

The previous prime is 28113457. The next prime is 28113523. The reversal of 28113474 is 47431182.

It is a sphenic number, since it is the product of 3 distinct primes.

28113474 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2342784 + ... + 2342795.

It is an arithmetic number, because the mean of its divisors is an integer number (7028370).

Almost surely, 2^28113474 is an apocalyptic number.

28113474 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28113474 is a wasteful number, since it uses less digits than its factorization.

28113474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4685584.

The product of its digits is 5376, while the sum is 30.

The square root of 28113474 is about 5302.2140658408. The cubic root of 28113474 is about 304.0685513112.

The spelling of 28113474 in words is "twenty-eight million, one hundred thirteen thousand, four hundred seventy-four".