3218674536 has 384 divisors, whose sum is σ = 11432467200. Its totient is φ = 821145600.

The previous prime is 3218674523. The next prime is 3218674553. The reversal of 3218674536 is 6354768123.

3218674536 is a `hidden beast` number, since 32 + 1 + 86 + 7 + 4 + 536 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 3218674491 and 3218674500.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13355376 + ... + 13355616.

It is an arithmetic number, because the mean of its divisors is an integer number (29772050).

Almost surely, 2^3218674536 is an apocalyptic number.

3218674536 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3218674536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5716233600).

3218674536 is an abundant number, since it is smaller than the sum of its proper divisors (8213792664).

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

3218674536 is a wasteful number, since it uses less digits than its factorization.

3218674536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358 (or 337 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 3218674536 is about 56733.3635174224. The cubic root of 3218674536 is about 1476.4736070224.

The spelling of 3218674536 in words is "three billion, two hundred eighteen million, six hundred seventy-four thousand, five hundred thirty-six".