28454906 has 16 divisors (see below), whose sum is σ = 46246464. Its totient is φ = 13078464.

The previous prime is 28454879. The next prime is 28454911. The reversal of 28454906 is 60945482.

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 28454906.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8270 + ... + 11193.

It is an arithmetic number, because the mean of its divisors is an integer number (2890404).

Almost surely, 2^28454906 is an apocalyptic number.

28454906 is a deficient number, since it is larger than the sum of its proper divisors (17791558).

28454906 is a wasteful number, since it uses less digits than its factorization.

28454906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19525.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 28454906 is about 5334.3140140040. The cubic root of 28454906 is about 305.2945501719.

The spelling of 28454906 in words is "twenty-eight million, four hundred fifty-four thousand, nine hundred six".