34221340 has 48 divisors (see below), whose sum is σ = 76585824. Its totient is φ = 12800000.

The previous prime is 34221331. The next prime is 34221353. The reversal of 34221340 is 4312243.

It is a super-2 number, since 2×34221340² = 2342200222791200, which 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, 85140 + ... + 85540.

It is an arithmetic number, because the mean of its divisors is an integer number (1595538).

Almost surely, 2^34221340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34221340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38292912).

34221340 is an abundant number, since it is smaller than the sum of its proper divisors (42364484).

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

34221340 is a wasteful number, since it uses less digits than its factorization.

34221340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 34221340 is about 5849.9008538607. The cubic root of 34221340 is about 324.6626558812.

Adding to 34221340 its reverse (4312243), we get a palindrome (38533583).

The spelling of 34221340 in words is "thirty-four million, two hundred twenty-one thousand, three hundred forty".