11920500 has 96 divisors (see below), whose sum is σ = 38613120. Its totient is φ = 3175200.

The previous prime is 11920487. The next prime is 11920511. The reversal of 11920500 is 502911.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13059 + ... + 13941.

It is an arithmetic number, because the mean of its divisors is an integer number (402220).

Almost surely, 2^11920500 is an apocalyptic number.

11920500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11920500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19306560).

11920500 is an abundant number, since it is smaller than the sum of its proper divisors (26692620).

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

11920500 is a wasteful number, since it uses less digits than its factorization.

11920500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911 (or 893 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 11920500 is about 3452.6077101229. The cubic root of 11920500 is about 228.4361457655.

The spelling of 11920500 in words is "eleven million, nine hundred twenty thousand, five hundred".