1850038985 has 16 divisors (see below), whose sum is σ = 2265373440. Its totient is φ = 1450101120.

The previous prime is 1850038979. The next prime is 1850039003. The reversal of 1850038985 is 5898300581.

It is not a de Polignac number, because 1850038985 - 2⁶ = 1850038921 is a prime.

It is a Curzon 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, 33869 + ... + 69621.

It is an arithmetic number, because the mean of its divisors is an integer number (141585840).

Almost surely, 2^1850038985 is an apocalyptic number.

It is an amenable number.

1850038985 is a deficient number, since it is larger than the sum of its proper divisors (415334455).

1850038985 is a wasteful number, since it uses less digits than its factorization.

1850038985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35968.

The product of its (nonzero) digits is 345600, while the sum is 47.

The square root of 1850038985 is about 43012.0795242453. The cubic root of 1850038985 is about 1227.6096491993.

The spelling of 1850038985 in words is "one billion, eight hundred fifty million, thirty-eight thousand, nine hundred eighty-five".