11219720 has 32 divisors (see below), whose sum is σ = 25401600. Its totient is φ = 4459968.

The previous prime is 11219717. The next prime is 11219731. The reversal of 11219720 is 2791211.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6377 + ... + 7943.

It is an arithmetic number, because the mean of its divisors is an integer number (793800).

Almost surely, 2^11219720 is an apocalyptic number.

11219720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11219720 is an abundant number, since it is smaller than the sum of its proper divisors (14181880).

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

11219720 is a wasteful number, since it uses less digits than its factorization.

11219720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1757 (or 1753 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 11219720 is about 3349.5850489277. The cubic root of 11219720 is about 223.8690241969.

The spelling of 11219720 in words is "eleven million, two hundred nineteen thousand, seven hundred twenty".