1385381 has 8 divisors (see below), whose sum is σ = 1477440. Its totient is φ = 1294528.

The previous prime is 1385369. The next prime is 1385383. The reversal of 1385381 is 1835831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1385381 is a prime.

It is a super-2 number, since 2×1385381² = 3838561030322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3680 + ... + 4038.

It is an arithmetic number, because the mean of its divisors is an integer number (184680).

2^1385381 is an apocalyptic number.

It is an amenable number.

1385381 is a deficient number, since it is larger than the sum of its proper divisors (92059).

1385381 is a wasteful number, since it uses less digits than its factorization.

1385381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603.

The product of its digits is 2880, while the sum is 29.

The square root of 1385381 is about 1177.0220898522. The cubic root of 1385381 is about 111.4781472990.

The spelling of 1385381 in words is "one million, three hundred eighty-five thousand, three hundred eighty-one".