1380140 has 24 divisors (see below), whose sum is σ = 2923872. Its totient is φ = 547200.

The previous prime is 1380083. The next prime is 1380149. The reversal of 1380140 is 410831.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380149) 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, 2792 + ... + 3248.

It is an arithmetic number, because the mean of its divisors is an integer number (121828).

2^1380140 is an apocalyptic number.

1380140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1380140 is an abundant number, since it is smaller than the sum of its proper divisors (1543732).

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

1380140 is a wasteful number, since it uses less digits than its factorization.

1380140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617 (or 615 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1380140 is about 1174.7935988930. The cubic root of 1380140 is about 111.3373929301.

Adding to 1380140 its reverse (410831), we get a palindrome (1790971).

The spelling of 1380140 in words is "one million, three hundred eighty thousand, one hundred forty".