1379087380 has 48 divisors (see below), whose sum is σ = 3180643200. Its totient is φ = 498108800.

The previous prime is 1379087363. The next prime is 1379087389. The reversal of 1379087380 is 837809731.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1379087380.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1379087389) 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, 11745 + ... + 53815.

It is an arithmetic number, because the mean of its divisors is an integer number (66263400).

Almost surely, 2^1379087380 is an apocalyptic number.

1379087380 is a gapful number since it is divisible by the number (10) 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 1379087380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1590321600).

1379087380 is an abundant number, since it is smaller than the sum of its proper divisors (1801555820).

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

1379087380 is a wasteful number, since it uses less digits than its factorization.

1379087380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42240 (or 42238 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 1379087380 is about 37136.0657582356. The cubic root of 1379087380 is about 1113.0908039804.

The spelling of 1379087380 in words is "one billion, three hundred seventy-nine million, eighty-seven thousand, three hundred eighty".