1383425280 has 432 divisors, whose sum is σ = 5122550160. Its totient is φ = 344064000.

The previous prime is 1383425279. The next prime is 1383425293. The reversal of 1383425280 is 825243831.

1383425280 is a `hidden beast` number, since 1 + 38 + 342 + 5 + 280 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 3154176 + 1380271104 = 1776^2 + 37152^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13697230 + ... + 13697330.

It is an arithmetic number, because the mean of its divisors is an integer number (11857755).

Almost surely, 2^1383425280 is an apocalyptic number.

1383425280 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 1383425280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2561275080).

1383425280 is an abundant number, since it is smaller than the sum of its proper divisors (3739124880).

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

1383425280 is a wasteful number, since it uses less digits than its factorization.

1383425280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 1383425280 is about 37194.4253887595. The cubic root of 1383425280 is about 1114.2566529473.

The spelling of 1383425280 in words is "one billion, three hundred eighty-three million, four hundred twenty-five thousand, two hundred eighty".