1032399985 has 16 divisors (see below), whose sum is σ = 1281116736. Its totient is φ = 798228288.

The previous prime is 1032399961. The next prime is 1032400007. The reversal of 1032399985 is 5899932301.

1032399985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1032399985 - 2¹⁹ = 1031875697 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11319 + ... + 46828.

It is an arithmetic number, because the mean of its divisors is an integer number (80069796).

Almost surely, 2^1032399985 is an apocalyptic number.

It is an amenable number.

1032399985 is a deficient number, since it is larger than the sum of its proper divisors (248716751).

1032399985 is an equidigital number, since it uses as much as digits as its factorization.

1032399985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58272.

The product of its (nonzero) digits is 524880, while the sum is 49.

The square root of 1032399985 is about 32130.9816999108. The cubic root of 1032399985 is about 1010.6854103266.

The spelling of 1032399985 in words is "one billion, thirty-two million, three hundred ninety-nine thousand, nine hundred eighty-five".