8405211382 has 32 divisors (see below), whose sum is σ = 13052752128. Its totient is φ = 4057369056.

The previous prime is 8405211361. The next prime is 8405211403. The reversal of 8405211382 is 2831125048.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8405211361) and next prime (8405211403).

It is a super-2 number, since 2×8405211382² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1777273 + ... + 1781995.

It is an arithmetic number, because the mean of its divisors is an integer number (407898504).

Almost surely, 2^8405211382 is an apocalyptic number.

8405211382 is a deficient number, since it is larger than the sum of its proper divisors (4647540746).

8405211382 is a wasteful number, since it uses less digits than its factorization.

8405211382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5044.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 8405211382 is about 91679.9399105388. The cubic root of 8405211382 is about 2033.2130100319.

The spelling of 8405211382 in words is "eight billion, four hundred five million, two hundred eleven thousand, three hundred eighty-two".