1385808 has 20 divisors (see below), whose sum is σ = 3580128. Its totient is φ = 461920.

The previous prime is 1385801. The next prime is 1385809. The reversal of 1385808 is 8085831.

It is a super-5 number, since 5×1385808⁵ (a number of 32 digits) contains 55555 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385801) 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, 14388 + ... + 14483.

2^1385808 is an apocalyptic number.

It is an amenable number.

1385808 is an abundant number, since it is smaller than the sum of its proper divisors (2194320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1385808 is a wasteful number, since it uses less digits than its factorization.

1385808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28882 (or 28876 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 1385808 is about 1177.2034658461. The cubic root of 1385808 is about 111.4895993302.

The spelling of 1385808 in words is "one million, three hundred eighty-five thousand, eight hundred eight".