4038721852 has 48 divisors (see below), whose sum is σ = 8304912000. Its totient is φ = 1698701760.

The previous prime is 4038721837. The next prime is 4038721853. The reversal of 4038721852 is 2581278304.

It is a happy number.

It is a super-2 number, since 2×4038721852² = 32622548395644619808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4038721853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20227 + ... + 92122.

It is an arithmetic number, because the mean of its divisors is an integer number (173019000).

Almost surely, 2^4038721852 is an apocalyptic number.

It is an amenable number.

4038721852 is an abundant number, since it is smaller than the sum of its proper divisors (4266190148).

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

4038721852 is a wasteful number, since it uses less digits than its factorization.

4038721852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112426 (or 112424 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 4038721852 is about 63550.9390331882. The cubic root of 4038721852 is about 1592.5068707269.

The spelling of 4038721852 in words is "four billion, thirty-eight million, seven hundred twenty-one thousand, eight hundred fifty-two".