1387848 has 64 divisors (see below), whose sum is σ = 4331520. Its totient is φ = 360000.

The previous prime is 1387847. The next prime is 1387849. The reversal of 1387848 is 8487831.

It is an interprime number because it is at equal distance from previous prime (1387847) and next prime (1387849).

It is a super-2 number, since 2×1387848² = 3852244142208, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (1387847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1473 + ... + 2223.

It is an arithmetic number, because the mean of its divisors is an integer number (67680).

2^1387848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1387848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2165760).

1387848 is an abundant number, since it is smaller than the sum of its proper divisors (2943672).

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

1387848 is a wasteful number, since it uses less digits than its factorization.

1387848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778 (or 774 counting only the distinct ones).

The product of its digits is 43008, while the sum is 39.

The square root of 1387848 is about 1178.0696074511. The cubic root of 1387848 is about 111.5442791685.

The spelling of 1387848 in words is "one million, three hundred eighty-seven thousand, eight hundred forty-eight".