11872020 has 48 divisors (see below), whose sum is σ = 34392960. Its totient is φ = 3056256.

The previous prime is 11872019. The next prime is 11872033. The reversal of 11872020 is 2027811.

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 15 ways as a sum of consecutive naturals, for example, 1672 + ... + 5151.

It is an arithmetic number, because the mean of its divisors is an integer number (716520).

Almost surely, 2^11872020 is an apocalyptic number.

11872020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11872020 is an abundant number, since it is smaller than the sum of its proper divisors (22520940).

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

11872020 is a wasteful number, since it uses less digits than its factorization.

11872020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6864 (or 6862 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 11872020 is about 3445.5797770477. The cubic root of 11872020 is about 228.1260460326.

Adding to 11872020 its reverse (2027811), we get a palindrome (13899831).

The spelling of 11872020 in words is "eleven million, eight hundred seventy-two thousand, twenty".