28760222 has 4 divisors (see below), whose sum is σ = 43140336. Its totient is φ = 14380110.

The previous prime is 28760213. The next prime is 28760323. The reversal of 28760222 is 22206782.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7190054 + ... + 7190057.

It is an arithmetic number, because the mean of its divisors is an integer number (10785084).

Almost surely, 2^28760222 is an apocalyptic number.

28760222 is a deficient number, since it is larger than the sum of its proper divisors (14380114).

28760222 is a wasteful number, since it uses less digits than its factorization.

28760222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14380113.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 28760222 is about 5362.8557690842. The cubic root of 28760222 is about 306.3825863777.

It can be divided in two parts, 28760 and 222, that added together give a palindrome (28982).

The spelling of 28760222 in words is "twenty-eight million, seven hundred sixty thousand, two hundred twenty-two".