34030640 has 80 divisors (see below), whose sum is σ = 91875072. Its totient is φ = 11480832.

The previous prime is 34030631. The next prime is 34030649. The reversal of 34030640 is 4603043.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (34030631) and next prime (34030649).

It is a tau number, because it is divible by the number of its divisors (80).

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

It is not an unprimeable number, because it can be changed into a prime (34030649) 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, 37067 + ... + 37973.

Almost surely, 2^34030640 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 34030640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45937536).

34030640 is an abundant number, since it is smaller than the sum of its proper divisors (57844432).

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

34030640 is a wasteful number, since it uses less digits than its factorization.

34030640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994 (or 988 counting only the distinct ones).

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

The square root of 34030640 is about 5833.5786615079. The cubic root of 34030640 is about 324.0584663072.

Adding to 34030640 its reverse (4603043), we get a palindrome (38633683).

The spelling of 34030640 in words is "thirty-four million, thirty thousand, six hundred forty".