1380888 has 40 divisors (see below), whose sum is σ = 3869580. Its totient is φ = 460080.

The previous prime is 1380887. The next prime is 1380889. The reversal of 1380888 is 8880831.

It is an interprime number because it is at equal distance from previous prime (1380887) and next prime (1380889).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 418 + ... + 1713.

2^1380888 is an apocalyptic number.

1380888 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1380888 is an abundant number, since it is smaller than the sum of its proper divisors (2488692).

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

1380888 is a wasteful number, since it uses less digits than its factorization.

1380888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149 (or 2136 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 1380888 is about 1175.1119095644. Note that the first 3 decimals coincide. The cubic root of 1380888 is about 111.3575032883.

The spelling of 1380888 in words is "one million, three hundred eighty thousand, eight hundred eighty-eight".