922240 has 64 divisors (see below), whose sum is σ = 2423520. Its totient is φ = 332800.

The previous prime is 922237. The next prime is 922247. The reversal of 922240 is 42229.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (922247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6975 + ... + 7105.

2⁹²²²⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 922240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1211760).

922240 is an abundant number, since it is smaller than the sum of its proper divisors (1501280).

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

922240 is a wasteful number, since it uses less digits than its factorization.

922240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 922240 is about 960.3332754830. Note that the first 3 decimals coincide. The cubic root of 922240 is about 97.3377533907.

Adding to 922240 its reverse (42229), we get a palindrome (964469).

It can be divided in two parts, 92 and 2240, that added together give a palindrome (2332).

The spelling of 922240 in words is "nine hundred twenty-two thousand, two hundred forty".