11404022420 has 48 divisors (see below), whose sum is σ = 27426954240. Its totient is φ = 3901764864.

The previous prime is 11404022419. The next prime is 11404022429. The reversal of 11404022420 is 2422040411.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 11404022392 and 11404022401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11404022429) 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, 17969 + ... + 152088.

It is an arithmetic number, because the mean of its divisors is an integer number (571394880).

Almost surely, 2^11404022420 is an apocalyptic number.

11404022420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11404022420 is an abundant number, since it is smaller than the sum of its proper divisors (16022931820).

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

11404022420 is a wasteful number, since it uses less digits than its factorization.

11404022420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170552 (or 170550 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 11404022420 its reverse (2422040411), we get a palindrome (13826062831).

The spelling of 11404022420 in words is "eleven billion, four hundred four million, twenty-two thousand, four hundred twenty".