1999572 has 12 divisors (see below), whose sum is σ = 4665696. Its totient is φ = 666520.

The previous prime is 1999567. The next prime is 1999603. The reversal of 1999572 is 2759991.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83304 + ... + 83327.

It is an arithmetic number, because the mean of its divisors is an integer number (388808).

2^1999572 is an apocalyptic number.

1999572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1999572 is an abundant number, since it is smaller than the sum of its proper divisors (2666124).

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

1999572 is a wasteful number, since it uses less digits than its factorization.

1999572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166638 (or 166636 counting only the distinct ones).

The product of its digits is 51030, while the sum is 42.

The square root of 1999572 is about 1414.0622334254. The cubic root of 1999572 is about 125.9831169115.

The spelling of 1999572 in words is "one million, nine hundred ninety-nine thousand, five hundred seventy-two".