22070700 has 108 divisors (see below), whose sum is σ = 70073640. Its totient is φ = 5809920.

The previous prime is 22070687. The next prime is 22070717. The reversal of 22070700 is 707022.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 35 ways as a sum of consecutive naturals, for example, 123211 + ... + 123389.

It is an arithmetic number, because the mean of its divisors is an integer number (648830).

Almost surely, 2^22070700 is an apocalyptic number.

22070700 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 22070700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35036820).

22070700 is an abundant number, since it is smaller than the sum of its proper divisors (48002940).

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

22070700 is a wasteful number, since it uses less digits than its factorization.

22070700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 18.

The square root of 22070700 is about 4697.9463598470. The cubic root of 22070700 is about 280.5037699551.

Adding to 22070700 its reverse (707022), we get a palindrome (22777722).

It can be divided in two parts, 2 and 2070700, that added together give a palindrome (2070702).

The spelling of 22070700 in words is "twenty-two million, seventy thousand, seven hundred".