43420330 has 16 divisors (see below), whose sum is σ = 78511104. Its totient is φ = 17289360.

The previous prime is 43420319. The next prime is 43420331. The reversal of 43420330 is 3302434.

It is a junction number, because it is equal to n+sod(n) for n = 43420298 and 43420307.

It is not an unprimeable number, because it can be changed into a prime (43420331) 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, 7506 + ... + 11965.

It is an arithmetic number, because the mean of its divisors is an integer number (4906944).

Almost surely, 2^43420330 is an apocalyptic number.

43420330 is a deficient number, since it is larger than the sum of its proper divisors (35090774).

43420330 is a wasteful number, since it uses less digits than its factorization.

43420330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19701.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 43420330 is about 6589.4104440382. The cubic root of 43420330 is about 351.4776440008.

Adding to 43420330 its reverse (3302434), we get a palindrome (46722764).

The spelling of 43420330 in words is "forty-three million, four hundred twenty thousand, three hundred thirty".