11390020 has 24 divisors (see below), whose sum is σ = 24691968. Its totient is φ = 4408800.

The previous prime is 11389997. The next prime is 11390039. The reversal of 11390020 is 2009311.

It is a junction number, because it is equal to n+sod(n) for n = 11389976 and 11390003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8566 + ... + 9805.

It is an arithmetic number, because the mean of its divisors is an integer number (1028832).

Almost surely, 2^11390020 is an apocalyptic number.

11390020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11390020 is an abundant number, since it is smaller than the sum of its proper divisors (13301948).

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

11390020 is a wasteful number, since it uses less digits than its factorization.

11390020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18411 (or 18409 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 11390020 is about 3374.9103691802. The cubic root of 11390020 is about 224.9960163904.

Adding to 11390020 its reverse (2009311), we get a palindrome (13399331).

The spelling of 11390020 in words is "eleven million, three hundred ninety thousand, twenty".