1999602 has 24 divisors (see below), whose sum is σ = 4726800. Its totient is φ = 605880.

The previous prime is 1999567. The next prime is 1999603. The reversal of 1999602 is 2069991.

It is not an unprimeable number, because it can be changed into a prime (1999603) 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 11 ways as a sum of consecutive naturals, for example, 4852 + ... + 5247.

It is an arithmetic number, because the mean of its divisors is an integer number (196950).

2^1999602 is an apocalyptic number.

1999602 is an abundant number, since it is smaller than the sum of its proper divisors (2727198).

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

1999602 is a wasteful number, since it uses less digits than its factorization.

1999602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10118 (or 10115 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 1999602 is about 1414.0728411224. The cubic root of 1999602 is about 125.9837469587.

It can be divided in two parts, 1999 and 602, that added together give a square (2601 = 51²).

The spelling of 1999602 in words is "one million, nine hundred ninety-nine thousand, six hundred two".