43820104 has 8 divisors (see below), whose sum is σ = 82162710. Its totient is φ = 21910048.

The previous prime is 43820093. The next prime is 43820123. The reversal of 43820104 is 40102834.

It can be written as a sum of positive squares in only one way, i.e., 34222500 + 9597604 = 5850^2 + 3098^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2738749 + ... + 2738764.

Almost surely, 2^43820104 is an apocalyptic number.

It is an amenable number.

43820104 is a deficient number, since it is larger than the sum of its proper divisors (38342606).

43820104 is a wasteful number, since it uses less digits than its factorization.

43820104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5477519 (or 5477515 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 43820104 is about 6619.6755207487. The cubic root of 43820104 is about 352.5530433398.

Adding to 43820104 its reverse (40102834), we get a palindrome (83922938).

The spelling of 43820104 in words is "forty-three million, eight hundred twenty thousand, one hundred four".