222169440 has 96 divisors (see below), whose sum is σ = 703261440. Its totient is φ = 58955264.

The previous prime is 222169439. The next prime is 222169459. The reversal of 222169440 is 44961222.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a junction number, because it is equal to n+sod(n) for n = 222169398 and 222169407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107941 + ... + 109979.

It is an arithmetic number, because the mean of its divisors is an integer number (7325640).

Almost surely, 2^222169440 is an apocalyptic number.

222169440 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 222169440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351630720).

222169440 is an abundant number, since it is smaller than the sum of its proper divisors (481092000).

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

222169440 is a wasteful number, since it uses less digits than its factorization.

222169440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2284 (or 2276 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 222169440 is about 14905.3493753082. The cubic root of 222169440 is about 605.6589046486.

The spelling of 222169440 in words is "two hundred twenty-two million, one hundred sixty-nine thousand, four hundred forty".