1919974 has 16 divisors (see below), whose sum is σ = 3405600. Its totient is φ = 794304.

The previous prime is 1919959. The next prime is 1919987. The reversal of 1919974 is 4799191.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1959 + ... + 2770.

It is an arithmetic number, because the mean of its divisors is an integer number (212850).

2^1919974 is an apocalyptic number.

1919974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1919974 is a deficient number, since it is larger than the sum of its proper divisors (1485626).

1919974 is a wasteful number, since it uses less digits than its factorization.

1919974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4767.

The product of its digits is 20412, while the sum is 40.

The square root of 1919974 is about 1385.6312640815. The cubic root of 1919974 is about 124.2887392075.

The spelling of 1919974 in words is "one million, nine hundred nineteen thousand, nine hundred seventy-four".