1384355560 has 128 divisors (see below), whose sum is σ = 3784734720. Its totient is φ = 444874752.

The previous prime is 1384355519. The next prime is 1384355593. The reversal of 1384355560 is 655534831.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1603689 + ... + 1604551.

It is an arithmetic number, because the mean of its divisors is an integer number (29568240).

Almost surely, 2^1384355560 is an apocalyptic number.

1384355560 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 1384355560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1892367360).

1384355560 is an abundant number, since it is smaller than the sum of its proper divisors (2400379160).

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

1384355560 is a wasteful number, since it uses less digits than its factorization.

1384355560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235 (or 1231 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 40.

The square root of 1384355560 is about 37206.9289245968. The cubic root of 1384355560 is about 1114.5063564513.

The spelling of 1384355560 in words is "one billion, three hundred eighty-four million, three hundred fifty-five thousand, five hundred sixty".