1381814 has 16 divisors (see below), whose sum is σ = 2397600. Its totient is φ = 585024.

The previous prime is 1381769. The next prime is 1381819. The reversal of 1381814 is 4181831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692 + ... + 1800.

It is an arithmetic number, because the mean of its divisors is an integer number (149850).

2^1381814 is an apocalyptic number.

1381814 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1381814 is a deficient number, since it is larger than the sum of its proper divisors (1015786).

1381814 is a wasteful number, since it uses less digits than its factorization.

1381814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207.

The product of its digits is 768, while the sum is 26.

The square root of 1381814 is about 1175.5058485605. The cubic root of 1381814 is about 111.3823892088.

The spelling of 1381814 in words is "one million, three hundred eighty-one thousand, eight hundred fourteen".