3800215531 has 24 divisors (see below), whose sum is σ = 4523551920. Its totient is φ = 3182360832.

The previous prime is 3800215511. The next prime is 3800215541. The reversal of 3800215531 is 1355120083.

3800215531 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3800215531 - 2¹³ = 3800207339 is a prime.

It is a super-2 number, since 2×3800215531² = 28883276164107223922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3800215531.

It is not an unprimeable number, because it can be changed into a prime (3800215501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 377775 + ... + 387703.

It is an arithmetic number, because the mean of its divisors is an integer number (188481330).

Almost surely, 2^3800215531 is an apocalyptic number.

3800215531 is a deficient number, since it is larger than the sum of its proper divisors (723336389).

3800215531 is a wasteful number, since it uses less digits than its factorization.

3800215531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10123 (or 10116 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 3800215531 is about 61645.8881921576. Note that the first 3 decimals coincide. The cubic root of 3800215531 is about 1560.5202531441.

The spelling of 3800215531 in words is "three billion, eight hundred million, two hundred fifteen thousand, five hundred thirty-one".