28202345 has 8 divisors (see below), whose sum is σ = 34032960. Its totient is φ = 22435120.

The previous prime is 28202329. The next prime is 28202351. The reversal of 28202345 is 54320282.

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

It is not a de Polignac number, because 28202345 - 2⁴ = 28202329 is a prime.

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, 14861 + ... + 16650.

It is an arithmetic number, because the mean of its divisors is an integer number (4254120).

Almost surely, 2^28202345 is an apocalyptic number.

It is an amenable number.

28202345 is a deficient number, since it is larger than the sum of its proper divisors (5830615).

28202345 is a wasteful number, since it uses less digits than its factorization.

28202345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31695.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 28202345 is about 5310.5880088743. The cubic root of 28202345 is about 304.3886167200.

The spelling of 28202345 in words is "twenty-eight million, two hundred two thousand, three hundred forty-five".