22280522 has 8 divisors (see below), whose sum is σ = 36459072. Its totient is φ = 10127500.

The previous prime is 22280513. The next prime is 22280551. The reversal of 22280522 is 22508222.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506354 + ... + 506397.

It is an arithmetic number, because the mean of its divisors is an integer number (4557384).

Almost surely, 2^22280522 is an apocalyptic number.

22280522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22280522 is a deficient number, since it is larger than the sum of its proper divisors (14178550).

22280522 is a wasteful number, since it uses less digits than its factorization.

22280522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012764.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 22280522 is about 4720.2247827831. The cubic root of 22280522 is about 281.3898667614.

Adding to 22280522 its reverse (22508222), we get a palindrome (44788744).

The spelling of 22280522 in words is "twenty-two million, two hundred eighty thousand, five hundred twenty-two".