11219140 has 24 divisors (see below), whose sum is σ = 24198552. Its totient is φ = 4366080.

The previous prime is 11219137. The next prime is 11219141. The reversal of 11219140 is 4191211.

It can be written as a sum of positive squares in 4 ways, for example, as 3334276 + 7884864 = 1826^2 + 2808^2 .

It is not an unprimeable number, because it can be changed into a prime (11219141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6841 + ... + 8320.

It is an arithmetic number, because the mean of its divisors is an integer number (1008273).

Almost surely, 2^11219140 is an apocalyptic number.

11219140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11219140 is an abundant number, since it is smaller than the sum of its proper divisors (12979412).

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

11219140 is a wasteful number, since it uses less digits than its factorization.

11219140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15207 (or 15205 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 11219140 is about 3349.4984699205. The cubic root of 11219140 is about 223.8651665168.

It can be divided in two parts, 1 and 1219140, that added together give a triangular number (1219141 = T₁₅₆₁).

The spelling of 11219140 in words is "eleven million, two hundred nineteen thousand, one hundred forty".