28475942 has 8 divisors (see below), whose sum is σ = 46597032. Its totient is φ = 12943600.

The previous prime is 28475917. The next prime is 28475963. The reversal of 28475942 is 24957482.

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

It is a self number, because there is not a number n which added to its sum of digits gives 28475942.

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, 647159 + ... + 647202.

It is an arithmetic number, because the mean of its divisors is an integer number (5824629).

Almost surely, 2^28475942 is an apocalyptic number.

28475942 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28475942 is a deficient number, since it is larger than the sum of its proper divisors (18121090).

28475942 is a wasteful number, since it uses less digits than its factorization.

28475942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294374.

The product of its digits is 161280, while the sum is 41.

The square root of 28475942 is about 5336.2854121570. The cubic root of 28475942 is about 305.3697638477.

The spelling of 28475942 in words is "twenty-eight million, four hundred seventy-five thousand, nine hundred forty-two".