43440971 has 8 divisors (see below), whose sum is σ = 50129664. Its totient is φ = 36873000.

The previous prime is 43440961. The next prime is 43440977. The reversal of 43440971 is 17904434.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43440971 - 2⁶ = 43440907 is a prime.

It is a super-2 number, since 2×43440971² = 3774235922845682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43440977) 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, 29405 + ... + 30846.

It is an arithmetic number, because the mean of its divisors is an integer number (6266208).

Almost surely, 2^43440971 is an apocalyptic number.

43440971 is a deficient number, since it is larger than the sum of its proper divisors (6688693).

43440971 is a wasteful number, since it uses less digits than its factorization.

43440971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60361.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 43440971 is about 6590.9764830410. The cubic root of 43440971 is about 351.5333299030.

The spelling of 43440971 in words is "forty-three million, four hundred forty thousand, nine hundred seventy-one".