1912144 has 40 divisors (see below), whose sum is σ = 4140360. Its totient is φ = 849408.

The previous prime is 1912139. The next prime is 1912147. The reversal of 1912144 is 4412191.

It can be written as a sum of positive squares in 4 ways, for example, as 7744 + 1904400 = 88^2 + 1380^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1912147) 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, 5874 + ... + 6190.

It is an arithmetic number, because the mean of its divisors is an integer number (103509).

2^1912144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1912144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2070180).

1912144 is an abundant number, since it is smaller than the sum of its proper divisors (2228216).

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

1912144 is a wasteful number, since it uses less digits than its factorization.

1912144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367 (or 361 counting only the distinct ones).

The product of its digits is 288, while the sum is 22.

The square root of 1912144 is about 1382.8029505320. The cubic root of 1912144 is about 124.1195517135.

The spelling of 1912144 in words is "one million, nine hundred twelve thousand, one hundred forty-four".