28994546 has 16 divisors (see below), whose sum is σ = 49830144. Its totient is φ = 12394944.

The previous prime is 28994531. The next prime is 28994549. The reversal of 28994546 is 64549982.

It is a super-2 number, since 2×28994546² = 1681367395492232, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28994546.

It is not an unprimeable number, because it can be changed into a prime (28994549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3671 + ... + 8453.

It is an arithmetic number, because the mean of its divisors is an integer number (3114384).

Almost surely, 2^28994546 is an apocalyptic number.

28994546 is a deficient number, since it is larger than the sum of its proper divisors (20835598).

28994546 is a wasteful number, since it uses less digits than its factorization.

28994546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5225.

The product of its digits is 622080, while the sum is 47.

The square root of 28994546 is about 5384.6583921359. The cubic root of 28994546 is about 307.2124211128.

The spelling of 28994546 in words is "twenty-eight million, nine hundred ninety-four thousand, five hundred forty-six".