43490430 has 96 divisors (see below), whose sum is σ = 123271200. Its totient is φ = 10596096.

The previous prime is 43490417. The next prime is 43490431. The reversal of 43490430 is 3409434.

It is a junction number, because it is equal to n+sod(n) for n = 43490394 and 43490403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43490431) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49152 + ... + 50028.

It is an arithmetic number, because the mean of its divisors is an integer number (1284075).

Almost surely, 2^43490430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43490430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61635600).

43490430 is an abundant number, since it is smaller than the sum of its proper divisors (79780770).

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

43490430 is a wasteful number, since it uses less digits than its factorization.

43490430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938 (or 935 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 43490430 is about 6594.7274394019. The cubic root of 43490430 is about 351.6666901263. Note that the first 4 decimals are identical.

Adding to 43490430 its reverse (3409434), we get a palindrome (46899864).

The spelling of 43490430 in words is "forty-three million, four hundred ninety thousand, four hundred thirty".