1387344 has 40 divisors (see below), whose sum is σ = 4096960. Its totient is φ = 396288.

The previous prime is 1387327. The next prime is 1387349. The reversal of 1387344 is 4437831.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387349) 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, 1729 + ... + 2400.

It is an arithmetic number, because the mean of its divisors is an integer number (102424).

2^1387344 is an apocalyptic number.

1387344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1387344 is an abundant number, since it is smaller than the sum of its proper divisors (2709616).

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

1387344 is a wasteful number, since it uses less digits than its factorization.

1387344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4147 (or 4141 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 1387344 is about 1177.8556787654. The cubic root of 1387344 is about 111.5307750183.

The spelling of 1387344 in words is "one million, three hundred eighty-seven thousand, three hundred forty-four".