43981427 has 8 divisors (see below), whose sum is σ = 51088992. Its totient is φ = 37080000.

The previous prime is 43981411. The next prime is 43981453. The reversal of 43981427 is 72418934.

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 43981427 - 2⁴ = 43981411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43981027) 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, 51074 + ... + 51927.

It is an arithmetic number, because the mean of its divisors is an integer number (6386124).

Almost surely, 2^43981427 is an apocalyptic number.

43981427 is a deficient number, since it is larger than the sum of its proper divisors (7107565).

43981427 is a wasteful number, since it uses less digits than its factorization.

43981427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103069.

The product of its digits is 48384, while the sum is 38.

The square root of 43981427 is about 6631.8494403899. The cubic root of 43981427 is about 352.9851529359.

The spelling of 43981427 in words is "forty-three million, nine hundred eighty-one thousand, four hundred twenty-seven".