1919412 has 72 divisors (see below), whose sum is σ = 5477472. Its totient is φ = 561600.

The previous prime is 1919387. The next prime is 1919429. The reversal of 1919412 is 2149191.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14587 + ... + 14717.

It is an arithmetic number, because the mean of its divisors is an integer number (76076).

2^1919412 is an apocalyptic number.

1919412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1919412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2738736).

1919412 is an abundant number, since it is smaller than the sum of its proper divisors (3558060).

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

1919412 is a wasteful number, since it uses less digits than its factorization.

1919412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 184 counting only the distinct ones).

The product of its digits is 648, while the sum is 27.

The square root of 1919412 is about 1385.4284535839. The cubic root of 1919412 is about 124.2766110766.

The spelling of 1919412 in words is "one million, nine hundred nineteen thousand, four hundred twelve".