22070000 has 50 divisors (see below), whose sum is σ = 53457888. Its totient is φ = 8824000.

The previous prime is 22069997. The next prime is 22070033. The reversal of 22070000 is 7022.

It is a tau number, because it is divible by the number of its divisors (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8897 + ... + 11103.

Almost surely, 2^22070000 is an apocalyptic number.

22070000 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 22070000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26728944).

22070000 is an abundant number, since it is smaller than the sum of its proper divisors (31387888).

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

22070000 is an equidigital number, since it uses as much as digits as its factorization.

22070000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2235 (or 2214 counting only the distinct ones).

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

The square root of 22070000 is about 4697.8718586185. The cubic root of 22070000 is about 280.5008044139.

Adding to 22070000 its reverse (7022), we get a palindrome (22077022).

The spelling of 22070000 in words is "twenty-two million, seventy thousand".