43425849 has 32 divisors (see below), whose sum is σ = 63060480. Its totient is φ = 26497152.

The previous prime is 43425821. The next prime is 43425869. The reversal of 43425849 is 94852434.

It is not a de Polignac number, because 43425849 - 2¹² = 43421753 is a prime.

It is a super-2 number, since 2×43425849² = 3771608722741602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43425869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 316909 + ... + 317045.

It is an arithmetic number, because the mean of its divisors is an integer number (1970640).

Almost surely, 2^43425849 is an apocalyptic number.

It is an amenable number.

43425849 is a deficient number, since it is larger than the sum of its proper divisors (19634631).

43425849 is a wasteful number, since it uses less digits than its factorization.

43425849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309.

The product of its digits is 138240, while the sum is 39.

The square root of 43425849 is about 6589.8292087125. The cubic root of 43425849 is about 351.4925350509.

The spelling of 43425849 in words is "forty-three million, four hundred twenty-five thousand, eight hundred forty-nine".