34009940 has 36 divisors (see below), whose sum is σ = 72769788. Its totient is φ = 13351680.

The previous prime is 34009933. The next prime is 34009957. The reversal of 34009940 is 4990043.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 6990736 + 27019204 = 2644^2 + 5198^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74192 + ... + 74648.

It is an arithmetic number, because the mean of its divisors is an integer number (2021383).

Almost surely, 2^34009940 is an apocalyptic number.

It is an amenable number.

34009940 is an abundant number, since it is smaller than the sum of its proper divisors (38759848).

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

34009940 is a wasteful number, since it uses less digits than its factorization.

34009940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588 (or 525 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 34009940 is about 5831.8041805260. The cubic root of 34009940 is about 323.9927473863.

Adding to 34009940 its reverse (4990043), we get a palindrome (38999983).

The spelling of 34009940 in words is "thirty-four million, nine thousand, nine hundred forty".