11922040 has 64 divisors (see below), whose sum is σ = 29302560. Its totient is φ = 4339200.

The previous prime is 11922019. The next prime is 11922041. The reversal of 11922040 is 4022911.

It is a junction number, because it is equal to n+sod(n) for n = 11921999 and 11922017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11922041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52407 + ... + 52633.

Almost surely, 2^11922040 is an apocalyptic number.

11922040 is a gapful number since it is divisible by the number (10) 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 11922040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14651280).

11922040 is an abundant number, since it is smaller than the sum of its proper divisors (17380520).

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

11922040 is a wasteful number, since it uses less digits than its factorization.

11922040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 11922040 is about 3452.8307227549. The cubic root of 11922040 is about 228.4459825037.

Adding to 11922040 its reverse (4022911), we get a palindrome (15944951).

The spelling of 11922040 in words is "eleven million, nine hundred twenty-two thousand, forty".