1985539002 has 32 divisors (see below), whose sum is σ = 4016404224. Its totient is φ = 654312000.

The previous prime is 1985538979. The next prime is 1985539013. The reversal of 1985539002 is 2009355891.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 480927 + ... + 485037.

It is an arithmetic number, because the mean of its divisors is an integer number (125512632).

Almost surely, 2^1985539002 is an apocalyptic number.

1985539002 is an abundant number, since it is smaller than the sum of its proper divisors (2030865222).

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

1985539002 is a wasteful number, since it uses less digits than its factorization.

1985539002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5014.

The product of its (nonzero) digits is 97200, while the sum is 42.

The square root of 1985539002 is about 44559.3873611386. The cubic root of 1985539002 is about 1256.8770822987.

The spelling of 1985539002 in words is "one billion, nine hundred eighty-five million, five hundred thirty-nine thousand, two".