1380432 has 20 divisors (see below), whose sum is σ = 3566240. Its totient is φ = 460128.

The previous prime is 1380427. The next prime is 1380439. The reversal of 1380432 is 2340831.

It is a happy number.

1380432 is an esthetic number in base 3, because in such base its adjacent digits differ by 1.

It is a junction number, because it is equal to n+sod(n) for n = 1380399 and 1380408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14332 + ... + 14427.

It is an arithmetic number, because the mean of its divisors is an integer number (178312).

2^1380432 is an apocalyptic number.

1380432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1380432 is an abundant number, since it is smaller than the sum of its proper divisors (2185808).

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

1380432 is a wasteful number, since it uses less digits than its factorization.

1380432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28770 (or 28764 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1380432 is about 1174.9178694700. The cubic root of 1380432 is about 111.3452443621.

The spelling of 1380432 in words is "one million, three hundred eighty thousand, four hundred thirty-two".