22000436 has 24 divisors (see below), whose sum is σ = 39729984. Its totient is φ = 10653120.

The previous prime is 22000427. The next prime is 22000441. The reversal of 22000436 is 63400022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26321 + ... + 27143.

It is an arithmetic number, because the mean of its divisors is an integer number (1655416).

Almost surely, 2^22000436 is an apocalyptic number.

It is an amenable number.

22000436 is a deficient number, since it is larger than the sum of its proper divisors (17729548).

22000436 is a wasteful number, since it uses less digits than its factorization.

22000436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031 (or 1029 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 22000436 is about 4690.4622373493. The cubic root of 22000436 is about 280.2057840975.

Adding to 22000436 its reverse (63400022), we get a palindrome (85400458).

The spelling of 22000436 in words is "twenty-two million, four hundred thirty-six", and thus it is an aban number.