43120434 has 16 divisors (see below), whose sum is σ = 98561088. Its totient is φ = 12320112.

The previous prime is 43120417. The next prime is 43120439. The reversal of 43120434 is 43402134.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 43120434.

It is not an unprimeable number, because it can be changed into a prime (43120439) 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, 513297 + ... + 513380.

It is an arithmetic number, because the mean of its divisors is an integer number (6160068).

Almost surely, 2^43120434 is an apocalyptic number.

43120434 is an abundant number, since it is smaller than the sum of its proper divisors (55440654).

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

43120434 is a wasteful number, since it uses less digits than its factorization.

43120434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026689.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 43120434 is about 6566.6151097807. The cubic root of 43120434 is about 350.6665773122. Note that the first 3 decimals are identical.

Adding to 43120434 its reverse (43402134), we get a palindrome (86522568).

The spelling of 43120434 in words is "forty-three million, one hundred twenty thousand, four hundred thirty-four".