922009440 has 384 divisors, whose sum is σ = 3372171264. Its totient is φ = 209664000.

The previous prime is 922009411. The next prime is 922009463. The reversal of 922009440 is 44900229.

It is a super-2 number, since 2×922009440² = 1700202814898227200, which contains 22 as substring.

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 = 922009398 and 922009407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7038175 + ... + 7038305.

It is an arithmetic number, because the mean of its divisors is an integer number (8781696).

Almost surely, 2^922009440 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 922009440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1686085632).

922009440 is an abundant number, since it is smaller than the sum of its proper divisors (2450161824).

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

922009440 is a wasteful number, since it uses less digits than its factorization.

922009440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 922009440 is about 30364.6083459016. The cubic root of 922009440 is about 973.2964123524.

Adding to 922009440 its reverse (44900229), we get a palindrome (966909669).

The spelling of 922009440 in words is "nine hundred twenty-two million, nine thousand, four hundred forty".