1384903680 has 88 divisors (see below), whose sum is σ = 4429576992. Its totient is φ = 369303552.

The previous prime is 1384903661. The next prime is 1384903687. The reversal of 1384903680 is 863094831.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1384903687) 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, 29722 + ... + 60441.

Almost surely, 2^1384903680 is an apocalyptic number.

1384903680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1384903680 is an abundant number, since it is smaller than the sum of its proper divisors (3044673312).

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

1384903680 is an equidigital number, since it uses as much as digits as its factorization.

1384903680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90191 (or 90173 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 1384903680 is about 37214.2940279673. The cubic root of 1384903680 is about 1114.6534291243.

The spelling of 1384903680 in words is "one billion, three hundred eighty-four million, nine hundred three thousand, six hundred eighty".