34644040 has 16 divisors (see below), whose sum is σ = 77949180. Its totient is φ = 13857600.

The previous prime is 34644037. The next prime is 34644053. The reversal of 34644040 is 4044643.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 31382404 + 3261636 = 5602^2 + 1806^2 .

It is a junction number, because it is equal to n+sod(n) for n = 34643996 and 34644014.

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, 433011 + ... + 433090.

Almost surely, 2^34644040 is an apocalyptic number.

It is an amenable number.

34644040 is an abundant number, since it is smaller than the sum of its proper divisors (43305140).

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

34644040 is a wasteful number, since it uses less digits than its factorization.

34644040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866112 (or 866108 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 34644040 is about 5885.9187897897. The cubic root of 34644040 is about 325.9939276473.

Adding to 34644040 its reverse (4044643), we get a palindrome (38688683).

The spelling of 34644040 in words is "thirty-four million, six hundred forty-four thousand, forty".