28945426 has 16 divisors (see below), whose sum is σ = 44906400. Its totient is φ = 13983520.

The previous prime is 28945421. The next prime is 28945429. The reversal of 28945426 is 62454982.

It is not an unprimeable number, because it can be changed into a prime (28945421) 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, 7125 + ... + 10423.

It is an arithmetic number, because the mean of its divisors is an integer number (2806650).

Almost surely, 2^28945426 is an apocalyptic number.

28945426 is a deficient number, since it is larger than the sum of its proper divisors (15960974).

28945426 is a wasteful number, since it uses less digits than its factorization.

28945426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3449.

The product of its digits is 138240, while the sum is 40.

The square root of 28945426 is about 5380.0953523149. The cubic root of 28945426 is about 307.0388389997.

The spelling of 28945426 in words is "twenty-eight million, nine hundred forty-five thousand, four hundred twenty-six".