1384381 has 4 divisors (see below), whose sum is σ = 1387552. Its totient is φ = 1381212.

The previous prime is 1384351. The next prime is 1384387. The reversal of 1384381 is 1834831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1384381 - 2⁵ = 1384349 is a prime.

It is a super-2 number, since 2×1384381² = 3833021506322, 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 (1384387) 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, 801 + ... + 1846.

It is an arithmetic number, because the mean of its divisors is an integer number (346888).

2^1384381 is an apocalyptic number.

It is an amenable number.

1384381 is a deficient number, since it is larger than the sum of its proper divisors (3171).

1384381 is an equidigital number, since it uses as much as digits as its factorization.

1384381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3170.

The product of its digits is 2304, while the sum is 28.

The square root of 1384381 is about 1176.5972123033. The cubic root of 1384381 is about 111.4513183423.

It can be divided in two parts, 13843 and 81, that added together give a square (13924 = 118²).

The spelling of 1384381 in words is "one million, three hundred eighty-four thousand, three hundred eighty-one".