1985069304 has 48 divisors (see below), whose sum is σ = 5431673520. Its totient is φ = 654865920.

The previous prime is 1985069287. The next prime is 1985069323. The reversal of 1985069304 is 4039605891.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1985069304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135132 + ... + 149099.

It is an arithmetic number, because the mean of its divisors is an integer number (113159865).

Almost surely, 2^1985069304 is an apocalyptic number.

It is an amenable number.

1985069304 is an abundant number, since it is smaller than the sum of its proper divisors (3446604216).

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

1985069304 is a wasteful number, since it uses less digits than its factorization.

1985069304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284340 (or 284333 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 1985069304 is about 44554.1165774836. The cubic root of 1985069304 is about 1256.7779657685. Note that the first 3 decimals are identical.

The spelling of 1985069304 in words is "one billion, nine hundred eighty-five million, sixty-nine thousand, three hundred four".