43604134 has 16 divisors (see below), whose sum is σ = 74838528. Its totient is φ = 18665352.

The previous prime is 43604111. The next prime is 43604137. The reversal of 43604134 is 43140634.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 43604099 and 43604108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43604137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17107 + ... + 19489.

It is an arithmetic number, because the mean of its divisors is an integer number (4677408).

Almost surely, 2^43604134 is an apocalyptic number.

43604134 is a deficient number, since it is larger than the sum of its proper divisors (31234394).

43604134 is a wasteful number, since it uses less digits than its factorization.

43604134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3699.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 43604134 is about 6603.3426383916. The cubic root of 43604134 is about 351.9728962860.

Adding to 43604134 its reverse (43140634), we get a palindrome (86744768).

The spelling of 43604134 in words is "forty-three million, six hundred four thousand, one hundred thirty-four".