11420424 has 24 divisors (see below), whose sum is σ = 30930510. Its totient is φ = 3806784.

The previous prime is 11420417. The next prime is 11420429. The reversal of 11420424 is 42402411.

It can be written as a sum of positive squares in only one way, i.e., 8892324 + 2528100 = 2982^2 + 1590^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11420397 and 11420406.

It is not an unprimeable number, because it can be changed into a prime (11420429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79237 + ... + 79380.

Almost surely, 2^11420424 is an apocalyptic number.

It is an amenable number.

11420424 is an abundant number, since it is smaller than the sum of its proper divisors (19510086).

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

11420424 is a wasteful number, since it uses less digits than its factorization.

11420424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158629 (or 158622 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 11420424 is about 3379.4117831362. The cubic root of 11420424 is about 225.1960365563.

Adding to 11420424 its reverse (42402411), we get a palindrome (53822835).

The spelling of 11420424 in words is "eleven million, four hundred twenty thousand, four hundred twenty-four".