3827399520 has 384 divisors, whose sum is σ = 14631321600. Its totient is φ = 821532672.

The previous prime is 3827399483. The next prime is 3827399573. The reversal of 3827399520 is 259937283.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 3827399520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10661101 + ... + 10661459.

It is an arithmetic number, because the mean of its divisors is an integer number (38102400).

Almost surely, 2^3827399520 is an apocalyptic number.

3827399520 is a gapful number since it is divisible by the number (30) 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 3827399520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7315660800).

3827399520 is an abundant number, since it is smaller than the sum of its proper divisors (10803922080).

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

3827399520 is a wasteful number, since it uses less digits than its factorization.

3827399520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 48.

The square root of 3827399520 is about 61865.9803122847. The cubic root of 3827399520 is about 1564.2323597359.

The spelling of 3827399520 in words is "three billion, eight hundred twenty-seven million, three hundred ninety-nine thousand, five hundred twenty".