34585218 has 32 divisors (see below), whose sum is σ = 77814720. Its totient is φ = 11526948.

The previous prime is 34585211. The next prime is 34585219. The reversal of 34585218 is 81258543.

It is a happy number.

It is a super-2 number, since 2×34585218² = 2392274608215048, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (34585211) 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, 421 + ... + 8327.

It is an arithmetic number, because the mean of its divisors is an integer number (2431710).

Almost surely, 2^34585218 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34585218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38907360).

34585218 is an abundant number, since it is smaller than the sum of its proper divisors (43229502).

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

34585218 is an frugal number, since it uses more digits than its factorization.

34585218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7930 (or 7912 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 34585218 is about 5880.9198260136. The cubic root of 34585218 is about 325.8093217930.

The spelling of 34585218 in words is "thirty-four million, five hundred eighty-five thousand, two hundred eighteen".