1999064 has 16 divisors (see below), whose sum is σ = 3969000. Its totient is φ = 940672.

The previous prime is 1999061. The next prime is 1999069. The reversal of 1999064 is 4609991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1999061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7214 + ... + 7485.

2^1999064 is an apocalyptic number.

It is an amenable number.

1999064 is a deficient number, since it is larger than the sum of its proper divisors (1969936).

1999064 is a wasteful number, since it uses less digits than its factorization.

1999064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14722 (or 14718 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 1999064 is about 1413.8825976721. The cubic root of 1999064 is about 125.9724471542.

The spelling of 1999064 in words is "one million, nine hundred ninety-nine thousand, sixty-four".