1385810884 has 12 divisors (see below), whose sum is σ = 2425432464. Its totient is φ = 692830184.

The previous prime is 1385810863. The next prime is 1385810891. The reversal of 1385810884 is 4880185831.

It is a super-2 number, since 2×1385810884² = 3840943612425722912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53487 + ... + 75049.

It is an arithmetic number, because the mean of its divisors is an integer number (202119372).

Almost surely, 2^1385810884 is an apocalyptic number.

It is an amenable number.

1385810884 is a deficient number, since it is larger than the sum of its proper divisors (1039621580).

1385810884 is a wasteful number, since it uses less digits than its factorization.

1385810884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37634 (or 37632 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 46.

The square root of 1385810884 is about 37226.4809510649. The cubic root of 1385810884 is about 1114.8967667030.

It can be divided in two parts, 13858 and 10884, that added together give a palindrome (24742).

The spelling of 1385810884 in words is "one billion, three hundred eighty-five million, eight hundred ten thousand, eight hundred eighty-four".