3815891322 has 16 divisors (see below), whose sum is σ = 7632479232. Its totient is φ = 1271847680.

The previous prime is 3815891273. The next prime is 3815891327. The reversal of 3815891322 is 2231985183.

It is a happy number.

It is a super-2 number, since 2×3815891322² = 29122053162629815368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3815891327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66247 + ... + 109637.

It is an arithmetic number, because the mean of its divisors is an integer number (477029952).

Almost surely, 2^3815891322 is an apocalyptic number.

3815891322 is an abundant number, since it is smaller than the sum of its proper divisors (3816587910).

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

3815891322 is a wasteful number, since it uses less digits than its factorization.

3815891322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58053.

The product of its digits is 103680, while the sum is 42.

The square root of 3815891322 is about 61772.9011946177. The cubic root of 3815891322 is about 1562.6630114899.

The spelling of 3815891322 in words is "three billion, eight hundred fifteen million, eight hundred ninety-one thousand, three hundred twenty-two".