22782530 has 16 divisors (see below), whose sum is σ = 41333760. Its totient is φ = 9040752.

The previous prime is 22782509. The next prime is 22782541. The reversal of 22782530 is 3528722.

It is a junction number, because it is equal to n+sod(n) for n = 22782493 and 22782502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7700 + ... + 10239.

It is an arithmetic number, because the mean of its divisors is an integer number (2583360).

Almost surely, 2^22782530 is an apocalyptic number.

22782530 is a deficient number, since it is larger than the sum of its proper divisors (18551230).

22782530 is a wasteful number, since it uses less digits than its factorization.

22782530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18073.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 22782530 is about 4773.1048595228. The cubic root of 22782530 is about 283.4875454238.

The spelling of 22782530 in words is "twenty-two million, seven hundred eighty-two thousand, five hundred thirty".