1380691032 has 96 divisors (see below), whose sum is σ = 4028541120. Its totient is φ = 393180480.

The previous prime is 1380691021. The next prime is 1380691049. The reversal of 1380691032 is 2301960831.

It is a junction number, because it is equal to n+sod(n) for n = 1380690984 and 1380691002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 387483 + ... + 391029.

It is an arithmetic number, because the mean of its divisors is an integer number (41963970).

Almost surely, 2^1380691032 is an apocalyptic number.

1380691032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1380691032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2014270560).

1380691032 is an abundant number, since it is smaller than the sum of its proper divisors (2647850088).

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

1380691032 is a wasteful number, since it uses less digits than its factorization.

1380691032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3901 (or 3890 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 1380691032 is about 37157.6510560073. The cubic root of 1380691032 is about 1113.5220840852.

The spelling of 1380691032 in words is "one billion, three hundred eighty million, six hundred ninety-one thousand, thirty-two".