22000700 has 72 divisors (see below), whose sum is σ = 50663424. Its totient is φ = 8280000.

The previous prime is 22000679. The next prime is 22000721. The reversal of 22000700 is 700022.

It is an interprime number because it is at equal distance from previous prime (22000679) and next prime (22000721).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145625 + ... + 145775.

Almost surely, 2^22000700 is an apocalyptic number.

22000700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22000700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25331712).

22000700 is an abundant number, since it is smaller than the sum of its proper divisors (28662724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22000700 is a wasteful number, since it uses less digits than its factorization.

22000700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 236 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 11.

The square root of 22000700 is about 4690.4903794806. The cubic root of 22000700 is about 280.2069048939.

Adding to 22000700 its reverse (700022), we get a palindrome (22700722).

The spelling of 22000700 in words is "twenty-two million, seven hundred", and thus it is an aban number.