22400530 has 16 divisors (see below), whose sum is σ = 41005440. Its totient is φ = 8808112.

The previous prime is 22400527. The next prime is 22400533. The reversal of 22400530 is 3500422.

It is an interprime number because it is at equal distance from previous prime (22400527) and next prime (22400533).

It is not an unprimeable number, because it can be changed into a prime (22400533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18394 + ... + 19573.

It is an arithmetic number, because the mean of its divisors is an integer number (2562840).

Almost surely, 2^22400530 is an apocalyptic number.

22400530 is a deficient number, since it is larger than the sum of its proper divisors (18604910).

22400530 is a wasteful number, since it uses less digits than its factorization.

22400530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38033.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 22400530 is about 4732.9198176179. The cubic root of 22400530 is about 281.8941725200.

Adding to 22400530 its reverse (3500422), we get a palindrome (25900952).

The spelling of 22400530 in words is "twenty-two million, four hundred thousand, five hundred thirty".