3218292216 has 64 divisors (see below), whose sum is σ = 8953783200. Its totient is φ = 1071074304.

The previous prime is 3218292211. The next prime is 3218292223. The reversal of 3218292216 is 6122928123.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3218292211) 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, 129640 + ... + 152456.

Almost surely, 2^3218292216 is an apocalyptic number.

3218292216 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3218292216 is an abundant number, since it is smaller than the sum of its proper divisors (5735490984).

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

3218292216 is a wasteful number, since it uses less digits than its factorization.

3218292216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23485 (or 23475 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 3218292216 is about 56729.9939714434. The cubic root of 3218292216 is about 1476.4151453032.

The spelling of 3218292216 in words is "three billion, two hundred eighteen million, two hundred ninety-two thousand, two hundred sixteen".