1385254368 has 144 divisors (see below), whose sum is σ = 4143484800. Its totient is φ = 438359040.

The previous prime is 1385254363. The next prime is 1385254447. The reversal of 1385254368 is 8634525831.

1385254368 is a `hidden beast` number, since 1 + 38 + 5 + 254 + 368 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385254361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 508113 + ... + 510831.

It is an arithmetic number, because the mean of its divisors is an integer number (28774200).

Almost surely, 2^1385254368 is an apocalyptic number.

1385254368 is a gapful number since it is divisible by the number (18) 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 1385254368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2071742400).

1385254368 is an abundant number, since it is smaller than the sum of its proper divisors (2758230432).

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

1385254368 is a wasteful number, since it uses less digits than its factorization.

1385254368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2825 (or 2814 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 1385254368 is about 37219.0054676371. The cubic root of 1385254368 is about 1114.7475060861.

The spelling of 1385254368 in words is "one billion, three hundred eighty-five million, two hundred fifty-four thousand, three hundred sixty-eight".