1919008 has 48 divisors (see below), whose sum is σ = 4656960. Its totient is φ = 758016.

The previous prime is 1918991. The next prime is 1919009. The reversal of 1919008 is 8009191.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (1919009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2583 + ... + 3241.

It is an arithmetic number, because the mean of its divisors is an integer number (97020).

2^1919008 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 1919008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2328480).

1919008 is an abundant number, since it is smaller than the sum of its proper divisors (2737952).

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

1919008 is a wasteful number, since it uses less digits than its factorization.

1919008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689 (or 681 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 1919008 is about 1385.2826426401. The cubic root of 1919008 is about 124.2678911711.

The spelling of 1919008 in words is "one million, nine hundred nineteen thousand, eight".