43425390 has 32 divisors (see below), whose sum is σ = 104439456. Its totient is φ = 11555840.

The previous prime is 43425373. The next prime is 43425397. The reversal of 43425390 is 9352434.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43425397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16570 + ... + 19010.

It is an arithmetic number, because the mean of its divisors is an integer number (3263733).

Almost surely, 2^43425390 is an apocalyptic number.

43425390 is an abundant number, since it is smaller than the sum of its proper divisors (61014066).

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

43425390 is a wasteful number, since it uses less digits than its factorization.

43425390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3044.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 43425390 is about 6589.7943822247. The cubic root of 43425390 is about 351.4912966515.

The spelling of 43425390 in words is "forty-three million, four hundred twenty-five thousand, three hundred ninety".