1999752 has 32 divisors (see below), whose sum is σ = 5056800. Its totient is φ = 658944.

The previous prime is 1999733. The next prime is 1999771. The reversal of 1999752 is 2579991.

It is an interprime number because it is at equal distance from previous prime (1999733) and next prime (1999771).

It is a d-powerful number, because it can be written as 1 + 9³ + 9⁴ + 9⁴ + 7 + 5⁹ + 2¹⁵ .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1899 + ... + 2757.

It is an arithmetic number, because the mean of its divisors is an integer number (158025).

2^1999752 is an apocalyptic number.

1999752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1999752 is an abundant number, since it is smaller than the sum of its proper divisors (3057048).

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

1999752 is a wasteful number, since it uses less digits than its factorization.

1999752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965 (or 961 counting only the distinct ones).

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

The square root of 1999752 is about 1414.1258784139. The cubic root of 1999752 is about 125.9868971005.

The spelling of 1999752 in words is "one million, nine hundred ninety-nine thousand, seven hundred fifty-two".