34204640 has 48 divisors (see below), whose sum is σ = 81185328. Its totient is φ = 13618176.

The previous prime is 34204631. The next prime is 34204649. The reversal of 34204640 is 4640243.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (34204631) and next prime (34204649).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34204649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49739 + ... + 50421.

It is an arithmetic number, because the mean of its divisors is an integer number (1691361).

Almost surely, 2^34204640 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 34204640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40592664).

34204640 is an abundant number, since it is smaller than the sum of its proper divisors (46980688).

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

34204640 is a wasteful number, since it uses less digits than its factorization.

34204640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011 (or 1003 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 34204640 is about 5848.4733050600. The cubic root of 34204640 is about 324.6098355402.

Adding to 34204640 its reverse (4640243), we get a palindrome (38844883).

The spelling of 34204640 in words is "thirty-four million, two hundred four thousand, six hundred forty".