11791020 has 48 divisors (see below), whose sum is σ = 34755840. Its totient is φ = 2978496.

The previous prime is 11791009. The next prime is 11791037. The reversal of 11791020 is 2019711.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4032 + ... + 6311.

It is an arithmetic number, because the mean of its divisors is an integer number (724080).

Almost surely, 2^11791020 is an apocalyptic number.

11791020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11791020 is an abundant number, since it is smaller than the sum of its proper divisors (22964820).

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

11791020 is a wasteful number, since it uses less digits than its factorization.

11791020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10374 (or 10372 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 21.

The square root of 11791020 is about 3433.8054691552. The cubic root of 11791020 is about 227.6060448335.

The spelling of 11791020 in words is "eleven million, seven hundred ninety-one thousand, twenty".