28146355 has 8 divisors (see below), whose sum is σ = 33851664. Its totient is φ = 22466400.

The previous prime is 28146341. The next prime is 28146359. The reversal of 28146355 is 55364182.

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

It is not a de Polignac number, because 28146355 - 2⁵ = 28146323 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28146355.

It is not an unprimeable number, because it can be changed into a prime (28146359) 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, 3801 + ... + 8410.

It is an arithmetic number, because the mean of its divisors is an integer number (4231458).

Almost surely, 2^28146355 is an apocalyptic number.

28146355 is a deficient number, since it is larger than the sum of its proper divisors (5705309).

28146355 is a wasteful number, since it uses less digits than its factorization.

28146355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12677.

The product of its digits is 28800, while the sum is 34.

The square root of 28146355 is about 5305.3138455703. The cubic root of 28146355 is about 304.1870494462.

The spelling of 28146355 in words is "twenty-eight million, one hundred forty-six thousand, three hundred fifty-five".