22219950 has 48 divisors (see below), whose sum is σ = 56465136. Its totient is φ = 5779200.

The previous prime is 22219933. The next prime is 22219961. The reversal of 22219950 is 5991222.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 4344 + ... + 7956.

It is an arithmetic number, because the mean of its divisors is an integer number (1176357).

Almost surely, 2^22219950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22219950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28232568).

22219950 is an abundant number, since it is smaller than the sum of its proper divisors (34245186).

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

22219950 is a wasteful number, since it uses less digits than its factorization.

22219950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3669 (or 3664 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 22219950 is about 4713.8041961880. The cubic root of 22219950 is about 281.1346391084.

The spelling of 22219950 in words is "twenty-two million, two hundred nineteen thousand, nine hundred fifty".