1384642560 has 384 divisors, whose sum is σ = 5208053760. Its totient is φ = 307494912.

The previous prime is 1384642549. The next prime is 1384642577. The reversal of 1384642560 is 652464831.

It is a tau number, because it is divible by the number of its divisors (384).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 10106812 + ... + 10106948.

It is an arithmetic number, because the mean of its divisors is an integer number (13562640).

Almost surely, 2^1384642560 is an apocalyptic number.

1384642560 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 1384642560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2604026880).

1384642560 is an abundant number, since it is smaller than the sum of its proper divisors (3823411200).

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

1384642560 is a wasteful number, since it uses less digits than its factorization.

1384642560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 1384642560 is about 37210.7855332295. The cubic root of 1384642560 is about 1114.5833697157.

The spelling of 1384642560 in words is "one billion, three hundred eighty-four million, six hundred forty-two thousand, five hundred sixty".