28024522 has 8 divisors (see below), whose sum is σ = 42120900. Its totient is φ = 13984224.

The previous prime is 28024501. The next prime is 28024523. The reversal of 28024522 is 22542082.

It can be written as a sum of positive squares in 2 ways, for example, as 27783441 + 241081 = 5271^2 + 491^2 .

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 (28024523) 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, 12747 + ... + 14782.

Almost surely, 2^28024522 is an apocalyptic number.

28024522 is a deficient number, since it is larger than the sum of its proper divisors (14096378).

28024522 is a wasteful number, since it uses less digits than its factorization.

28024522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28040.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 28024522 is about 5293.8192262298. The cubic root of 28024522 is about 303.7475180297.

The spelling of 28024522 in words is "twenty-eight million, twenty-four thousand, five hundred twenty-two".