1384940544 has 88 divisors (see below), whose sum is σ = 3975437760. Its totient is φ = 426123264.

The previous prime is 1384940521. The next prime is 1384940551. The reversal of 1384940544 is 4450494831.

It is a junction number, because it is equal to n+sod(n) for n = 1384940496 and 1384940505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22597 + ... + 57275.

Almost surely, 2^1384940544 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 1384940544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1987718880).

1384940544 is an abundant number, since it is smaller than the sum of its proper divisors (2590497216).

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

1384940544 is a wasteful number, since it uses less digits than its factorization.

1384940544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34715 (or 34697 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The square root of 1384940544 is about 37214.7893182267. The cubic root of 1384940544 is about 1114.6633191549.

The spelling of 1384940544 in words is "one billion, three hundred eighty-four million, nine hundred forty thousand, five hundred forty-four".