28575494 has 8 divisors (see below), whose sum is σ = 42915720. Its totient is φ = 14270256.

The previous prime is 28575473. The next prime is 28575509. The reversal of 28575494 is 49457582.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6599 + ... + 10034.

It is an arithmetic number, because the mean of its divisors is an integer number (5364465).

Almost surely, 2^28575494 is an apocalyptic number.

28575494 is a deficient number, since it is larger than the sum of its proper divisors (14340226).

28575494 is a wasteful number, since it uses less digits than its factorization.

28575494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17494.

The product of its digits is 403200, while the sum is 44.

The square root of 28575494 is about 5345.6051107428. The cubic root of 28575494 is about 305.7252079041.

The spelling of 28575494 in words is "twenty-eight million, five hundred seventy-five thousand, four hundred ninety-four".