28662146 has 8 divisors (see below), whose sum is σ = 45256080. Its totient is φ = 13576788.

The previous prime is 28662143. The next prime is 28662167. The reversal of 28662146 is 64126682.

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

It is a super-2 number, since 2×28662146² = 1643037226650632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28662143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377096 + ... + 377171.

It is an arithmetic number, because the mean of its divisors is an integer number (5657010).

Almost surely, 2^28662146 is an apocalyptic number.

28662146 is a deficient number, since it is larger than the sum of its proper divisors (16593934).

28662146 is a wasteful number, since it uses less digits than its factorization.

28662146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754288.

The product of its digits is 27648, while the sum is 35.

The square root of 28662146 is about 5353.7039514714. The cubic root of 28662146 is about 306.0339219375.

The spelling of 28662146 in words is "twenty-eight million, six hundred sixty-two thousand, one hundred forty-six".