28214330 has 32 divisors (see below), whose sum is σ = 53889408. Its totient is φ = 10612800.

The previous prime is 28214327. The next prime is 28214341. The reversal of 28214330 is 3341282.

It is a Smith number, since the sum of its digits (23) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 28214296 and 28214305.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13025 + ... + 15035.

It is an arithmetic number, because the mean of its divisors is an integer number (1684044).

Almost surely, 2^28214330 is an apocalyptic number.

28214330 is a deficient number, since it is larger than the sum of its proper divisors (25675078).

28214330 is a wasteful number, since it uses less digits than its factorization.

28214330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2102.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 28214330 is about 5311.7162951347. The cubic root of 28214330 is about 304.4317287487.

The spelling of 28214330 in words is "twenty-eight million, two hundred fourteen thousand, three hundred thirty".