34321340 has 48 divisors (see below), whose sum is σ = 75043584. Its totient is φ = 13171200.

The previous prime is 34321333. The next prime is 34321349. The reversal of 34321340 is 4312343.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34321349) 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, 122000 + ... + 122280.

It is an arithmetic number, because the mean of its divisors is an integer number (1563408).

Almost surely, 2^34321340 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 34321340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37521792).

34321340 is an abundant number, since it is smaller than the sum of its proper divisors (40722244).

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

34321340 is a wasteful number, since it uses less digits than its factorization.

34321340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 34321340 is about 5858.4417723487. The cubic root of 34321340 is about 324.9785863603.

Adding to 34321340 its reverse (4312343), we get a palindrome (38633683).

The spelling of 34321340 in words is "thirty-four million, three hundred twenty-one thousand, three hundred forty".