1380298944 has 56 divisors (see below), whose sum is σ = 3671062000. Its totient is φ = 457715712.

The previous prime is 1380298943. The next prime is 1380298951. The reversal of 1380298944 is 4498920831.

It is an ABA number since it can be written as A⋅B^A, here for A=3, B=772.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 1380298893 and 1380298902.

It is not an unprimeable number, because it can be changed into a prime (1380298943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7151712 + ... + 7151904.

Almost surely, 2^1380298944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1380298944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1835531000).

1380298944 is an abundant number, since it is smaller than the sum of its proper divisors (2290763056).

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

1380298944 is an frugal number, since it uses more digits than its factorization.

1380298944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 1380298944 is about 37152.3746751133. The cubic root of 1380298944 is about 1113.4166682773.

The spelling of 1380298944 in words is "one billion, three hundred eighty million, two hundred ninety-eight thousand, nine hundred forty-four".