34220440 has 16 divisors (see below), whose sum is σ = 76996080. Its totient is φ = 13688160.

The previous prime is 34220401. The next prime is 34220443. The reversal of 34220440 is 4402243.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34220443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427716 + ... + 427795.

It is an arithmetic number, because the mean of its divisors is an integer number (4812255).

Almost surely, 2^34220440 is an apocalyptic number.

It is an amenable number.

34220440 is an abundant number, since it is smaller than the sum of its proper divisors (42775640).

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

34220440 is a wasteful number, since it uses less digits than its factorization.

34220440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855522 (or 855518 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 34220440 is about 5849.8239289743. The cubic root of 34220440 is about 324.6598097142.

Adding to 34220440 its reverse (4402243), we get a palindrome (38622683).

The spelling of 34220440 in words is "thirty-four million, two hundred twenty thousand, four hundred forty".