1379926380 has 192 divisors, whose sum is σ = 4709117952. Its totient is φ = 294727680.

The previous prime is 1379926367. The next prime is 1379926409. The reversal of 1379926380 is 836299731.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1120365 + ... + 1121595.

It is an arithmetic number, because the mean of its divisors is an integer number (24526656).

Almost surely, 2^1379926380 is an apocalyptic number.

1379926380 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 1379926380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2354558976).

1379926380 is an abundant number, since it is smaller than the sum of its proper divisors (3329191572).

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

1379926380 is a wasteful number, since it uses less digits than its factorization.

1379926380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424 (or 1422 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 1379926380 is about 37147.3603369068. The cubic root of 1379926380 is about 1113.3164831454.

The spelling of 1379926380 in words is "one billion, three hundred seventy-nine million, nine hundred twenty-six thousand, three hundred eighty".