11819790 has 32 divisors (see below), whose sum is σ = 31520160. Its totient is φ = 3151872.

The previous prime is 11819789. The next prime is 11819809. The reversal of 11819790 is 9791811.

11819790 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 21619 + ... + 22158.

It is an arithmetic number, because the mean of its divisors is an integer number (985005).

Almost surely, 2^11819790 is an apocalyptic number.

11819790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11819790 is an abundant number, since it is smaller than the sum of its proper divisors (19700370).

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

11819790 is a wasteful number, since it uses less digits than its factorization.

11819790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43793 (or 43787 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 36.

The square root of 11819790 is about 3437.9921465879. The cubic root of 11819790 is about 227.7910134861.

The spelling of 11819790 in words is "eleven million, eight hundred nineteen thousand, seven hundred ninety".