4001601852 has 120 divisors (see below), whose sum is σ = 10685480960. Its totient is φ = 1305551520.

The previous prime is 4001601841. The next prime is 4001601871. The reversal of 4001601852 is 2581061004.

4001601852 is a `hidden beast` number, since 4 + 0 + 0 + 1 + 601 + 8 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 39 ways as a sum of consecutive naturals, for example, 3250077 + ... + 3251307.

Almost surely, 2^4001601852 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 4001601852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5342740480).

4001601852 is an abundant number, since it is smaller than the sum of its proper divisors (6683879108).

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

4001601852 is a wasteful number, since it uses less digits than its factorization.

4001601852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453 (or 1442 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 4001601852 is about 63258.2156877666. The cubic root of 4001601852 is about 1587.6129221512.

Adding to 4001601852 its reverse (2581061004), we get a palindrome (6582662856).

The spelling of 4001601852 in words is "four billion, one million, six hundred one thousand, eight hundred fifty-two".