34430540 has 72 divisors (see below), whose sum is σ = 79017120. Its totient is φ = 12576256.

The previous prime is 34430533. The next prime is 34430587. The reversal of 34430540 is 4503443.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 386816 + ... + 386904.

It is an arithmetic number, because the mean of its divisors is an integer number (1097460).

Almost surely, 2^34430540 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 34430540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39508560).

34430540 is an abundant number, since it is smaller than the sum of its proper divisors (44586580).

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

34430540 is a wasteful number, since it uses less digits than its factorization.

34430540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 34430540 is about 5867.7542552496. The cubic root of 34430540 is about 325.3228822712.

Adding to 34430540 its reverse (4503443), we get a palindrome (38933983).

The spelling of 34430540 in words is "thirty-four million, four hundred thirty thousand, five hundred forty".