1038830985 has 48 divisors (see below), whose sum is σ = 2006933760. Its totient is φ = 494000640.

The previous prime is 1038830983. The next prime is 1038830999. The reversal of 1038830985 is 5890388301.

1038830985 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1038830985 - 2¹ = 1038830983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1038830985.

It is not an unprimeable number, because it can be changed into a prime (1038830983) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21201 + ... + 50270.

It is an arithmetic number, because the mean of its divisors is an integer number (41811120).

Almost surely, 2^1038830985 is an apocalyptic number.

1038830985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1038830985 is a deficient number, since it is larger than the sum of its proper divisors (968102775).

1038830985 is a wasteful number, since it uses less digits than its factorization.

1038830985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71518 (or 71515 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 1038830985 is about 32230.9010888619. The cubic root of 1038830985 is about 1012.7796465787.

The spelling of 1038830985 in words is "one billion, thirty-eight million, eight hundred thirty thousand, nine hundred eighty-five".