1918572 has 24 divisors (see below), whose sum is σ = 4551792. Its totient is φ = 628800.

The previous prime is 1918571. The next prime is 1918607. The reversal of 1918572 is 2758191.

It is not an unprimeable number, because it can be changed into a prime (1918571) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 579 + ... + 2042.

It is an arithmetic number, because the mean of its divisors is an integer number (189658).

2^1918572 is an apocalyptic number.

1918572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1918572 is an abundant number, since it is smaller than the sum of its proper divisors (2633220).

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

1918572 is a wasteful number, since it uses less digits than its factorization.

1918572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2689 (or 2687 counting only the distinct ones).

The product of its digits is 5040, while the sum is 33.

The square root of 1918572 is about 1385.1252650934. The cubic root of 1918572 is about 124.2584792068.

The spelling of 1918572 in words is "one million, nine hundred eighteen thousand, five hundred seventy-two".