28458146 has 8 divisors (see below), whose sum is σ = 43065324. Its totient is φ = 14103040.

The previous prime is 28458139. The next prime is 28458163. The reversal of 28458146 is 64185482.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17732521 + 10725625 = 4211^2 + 3275^2 .

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

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, 62735 + ... + 63186.

Almost surely, 2^28458146 is an apocalyptic number.

28458146 is a deficient number, since it is larger than the sum of its proper divisors (14607178).

28458146 is a wasteful number, since it uses less digits than its factorization.

28458146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126036.

The product of its digits is 61440, while the sum is 38.

The square root of 28458146 is about 5334.6176995170. The cubic root of 28458146 is about 305.3061371229.

The spelling of 28458146 in words is "twenty-eight million, four hundred fifty-eight thousand, one hundred forty-six".