22140030 has 64 divisors (see below), whose sum is σ = 60507648. Its totient is φ = 5132160.

The previous prime is 22140029. The next prime is 22140047. The reversal of 22140030 is 3004122.

It is a junction number, because it is equal to n+sod(n) for n = 22139988 and 22140015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6132 + ... + 9048.

It is an arithmetic number, because the mean of its divisors is an integer number (945432).

Almost surely, 2^22140030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22140030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30253824).

22140030 is an abundant number, since it is smaller than the sum of its proper divisors (38367618).

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

22140030 is a wasteful number, since it uses less digits than its factorization.

22140030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2961.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 22140030 is about 4705.3193302899. The cubic root of 22140030 is about 280.7971755221.

Adding to 22140030 its reverse (3004122), we get a palindrome (25144152).

The spelling of 22140030 in words is "twenty-two million, one hundred forty thousand, thirty".