11182420 has 24 divisors (see below), whose sum is σ = 23612904. Its totient is φ = 4448256.

The previous prime is 11182397. The next prime is 11182427. The reversal of 11182420 is 2428111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13456 + 11168964 = 116^2 + 3342^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11182427) 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, 2412 + ... + 5308.

It is an arithmetic number, because the mean of its divisors is an integer number (983871).

Almost surely, 2^11182420 is an apocalyptic number.

11182420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11182420 is an abundant number, since it is smaller than the sum of its proper divisors (12430484).

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

11182420 is a wasteful number, since it uses less digits than its factorization.

11182420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3099 (or 3097 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 11182420 is about 3344.0125597850. The cubic root of 11182420 is about 223.6206643067.

The spelling of 11182420 in words is "eleven million, one hundred eighty-two thousand, four hundred twenty".