1380444814 has 16 divisors (see below), whose sum is σ = 2370864096. Its totient is φ = 590522400.

The previous prime is 1380444811. The next prime is 1380444833. The reversal of 1380444814 is 4184440831.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380444811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83557 + ... + 98704.

It is an arithmetic number, because the mean of its divisors is an integer number (148179006).

Almost surely, 2^1380444814 is an apocalyptic number.

1380444814 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1380444814 is a deficient number, since it is larger than the sum of its proper divisors (990419282).

1380444814 is a wasteful number, since it uses less digits than its factorization.

1380444814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182811.

The product of its (nonzero) digits is 49152, while the sum is 37.

The square root of 1380444814 is about 37154.3377548302. The cubic root of 1380444814 is about 1113.4558888556.

The spelling of 1380444814 in words is "one billion, three hundred eighty million, four hundred forty-four thousand, eight hundred fourteen".