1385884 has 12 divisors (see below), whose sum is σ = 2437344. Its totient is φ = 689504.

The previous prime is 1385873. The next prime is 1385887. The reversal of 1385884 is 4885831.

It is a super-2 number, since 2×1385884² = 3841348922912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189 + ... + 1675.

It is an arithmetic number, because the mean of its divisors is an integer number (203112).

2^1385884 is an apocalyptic number.

It is an amenable number.

1385884 is a deficient number, since it is larger than the sum of its proper divisors (1051460).

1385884 is a wasteful number, since it uses less digits than its factorization.

1385884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1724 (or 1722 counting only the distinct ones).

The product of its digits is 30720, while the sum is 37.

The square root of 1385884 is about 1177.2357452949. The cubic root of 1385884 is about 111.4916373842.

The spelling of 1385884 in words is "one million, three hundred eighty-five thousand, eight hundred eighty-four".