43452969 has 32 divisors (see below), whose sum is σ = 71331840. Its totient is φ = 22962432.

The previous prime is 43452967. The next prime is 43452971. The reversal of 43452969 is 96925434.

It is an interprime number because it is at equal distance from previous prime (43452967) and next prime (43452971).

It is not a de Polignac number, because 43452969 - 2¹ = 43452967 is a prime.

It is a super-2 number, since 2×43452969² = 3776321029829922, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 43452969.

It is not an unprimeable number, because it can be changed into a prime (43452961) 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, 20032 + ... + 22094.

It is an arithmetic number, because the mean of its divisors is an integer number (2229120).

Almost surely, 2^43452969 is an apocalyptic number.

It is an amenable number.

43452969 is a deficient number, since it is larger than the sum of its proper divisors (27878871).

43452969 is a wasteful number, since it uses less digits than its factorization.

43452969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149.

The product of its digits is 233280, while the sum is 42.

The square root of 43452969 is about 6591.8866040004. The cubic root of 43452969 is about 351.5656903572.

The spelling of 43452969 in words is "forty-three million, four hundred fifty-two thousand, nine hundred sixty-nine".