34040340 has 72 divisors (see below), whose sum is σ = 103777128. Its totient is φ = 9031680.

The previous prime is 34040339. The next prime is 34040359. The reversal of 34040340 is 4304043.

It can be written as a sum of positive squares in 4 ways, for example, as 3437316 + 30603024 = 1854^2 + 5532^2 .

It is a super-3 number, since 3×34040340³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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, 50244 + ... + 50916.

It is an arithmetic number, because the mean of its divisors is an integer number (1441349).

Almost surely, 2^34040340 is an apocalyptic number.

34040340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34040340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51888564).

34040340 is an abundant number, since it is smaller than the sum of its proper divisors (69736788).

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

34040340 is a wasteful number, since it uses less digits than its factorization.

34040340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969 (or 964 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 34040340 is about 5834.4099958779. The cubic root of 34040340 is about 324.0892529602.

Adding to 34040340 its reverse (4304043), we get a palindrome (38344383).

The spelling of 34040340 in words is "thirty-four million, forty thousand, three hundred forty".