4047399252 has 252 divisors, whose sum is σ = 11828323584. Its totient is φ = 1210023360.

The previous prime is 4047399221. The next prime is 4047399283. The reversal of 4047399252 is 2529937404.

4047399252 is a `hidden beast` number, since 4 + 0 + 4 + 7 + 399 + 252 = 666.

It is an interprime number because it is at equal distance from previous prime (4047399221) and next prime (4047399283).

It is a junction number, because it is equal to n+sod(n) for n = 4047399198 and 4047399207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 21190477 + ... + 21190667.

It is an arithmetic number, because the mean of its divisors is an integer number (46937792).

Almost surely, 2^4047399252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4047399252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5914161792).

4047399252 is an abundant number, since it is smaller than the sum of its proper divisors (7780924332).

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

4047399252 is a wasteful number, since it uses less digits than its factorization.

4047399252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 4047399252 is about 63619.1736192793. The cubic root of 4047399252 is about 1593.6465822998.

The spelling of 4047399252 in words is "four billion, forty-seven million, three hundred ninety-nine thousand, two hundred fifty-two".