28243954 has 8 divisors (see below), whose sum is σ = 44208000. Its totient is φ = 13507956.

The previous prime is 28243951. The next prime is 28243961. The reversal of 28243954 is 45934282.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (28243951) 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, 306954 + ... + 307045.

It is an arithmetic number, because the mean of its divisors is an integer number (5526000).

Almost surely, 2^28243954 is an apocalyptic number.

28243954 is a deficient number, since it is larger than the sum of its proper divisors (15964046).

28243954 is a wasteful number, since it uses less digits than its factorization.

28243954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614024.

The product of its digits is 69120, while the sum is 37.

The square root of 28243954 is about 5314.5041160959. The cubic root of 28243954 is about 304.5382388213.

The spelling of 28243954 in words is "twenty-eight million, two hundred forty-three thousand, nine hundred fifty-four".