1379439360 has 432 divisors, whose sum is σ = 5258705088. Its totient is φ = 331776000.

The previous prime is 1379439343. The next prime is 1379439367. The reversal of 1379439360 is 639349731.

It is a happy number.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1379439367) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9135285 + ... + 9135435.

Almost surely, 2^1379439360 is an apocalyptic number.

1379439360 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 1379439360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2629352544).

1379439360 is an abundant number, since it is smaller than the sum of its proper divisors (3879265728).

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

1379439360 is a wasteful number, since it uses less digits than its factorization.

1379439360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 45.

The square root of 1379439360 is about 37140.8045147113. The cubic root of 1379439360 is about 1113.1854927773.

The spelling of 1379439360 in words is "one billion, three hundred seventy-nine million, four hundred thirty-nine thousand, three hundred sixty".