34228640 has 24 divisors (see below), whose sum is σ = 80865540. Its totient is φ = 13691392.

The previous prime is 34228639. The next prime is 34228679. The reversal of 34228640 is 4682243.

It can be written as a sum of positive squares in 2 ways, for example, as 34058896 + 169744 = 5836^2 + 412^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106805 + ... + 107124.

Almost surely, 2^34228640 is an apocalyptic number.

It is an amenable number.

34228640 is an abundant number, since it is smaller than the sum of its proper divisors (46636900).

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

34228640 is a wasteful number, since it uses less digits than its factorization.

34228640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213944 (or 213936 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 34228640 is about 5850.5247627884. The cubic root of 34228640 is about 324.6857396148.

It can be divided in two parts, 342 and 28640, that added together give a palindrome (28982).

The spelling of 34228640 in words is "thirty-four million, two hundred twenty-eight thousand, six hundred forty".