1038490985 has 32 divisors (see below), whose sum is σ = 1512836352. Its totient is φ = 668067840.

The previous prime is 1038490969. The next prime is 1038490993. The reversal of 1038490985 is 5890948301.

It is not a de Polignac number, because 1038490985 - 2⁴ = 1038490969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194309 + ... + 199581.

It is an arithmetic number, because the mean of its divisors is an integer number (47276136).

Almost surely, 2^1038490985 is an apocalyptic number.

It is an amenable number.

1038490985 is a deficient number, since it is larger than the sum of its proper divisors (474345367).

1038490985 is a wasteful number, since it uses less digits than its factorization.

1038490985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5633.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 1038490985 is about 32225.6262157929. The cubic root of 1038490985 is about 1012.6691433115.

The spelling of 1038490985 in words is "one billion, thirty-eight million, four hundred ninety thousand, nine hundred eighty-five".