1379189680 has 40 divisors (see below), whose sum is σ = 3498128784. Its totient is φ = 501523200.

The previous prime is 1379189629. The next prime is 1379189683. The reversal of 1379189680 is 869819731.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (1379189683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 782751 + ... + 784510.

Almost surely, 2^1379189680 is an apocalyptic number.

1379189680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1379189680 is an abundant number, since it is smaller than the sum of its proper divisors (2118939104).

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

1379189680 is a wasteful number, since it uses less digits than its factorization.

1379189680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567285 (or 1567279 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 52.

The square root of 1379189680 is about 37137.4430999228. The cubic root of 1379189680 is about 1113.1183261363.

The spelling of 1379189680 in words is "one billion, three hundred seventy-nine million, one hundred eighty-nine thousand, six hundred eighty".