43743982 has 4 divisors (see below), whose sum is σ = 65615976. Its totient is φ = 21871990.

The previous prime is 43743979. The next prime is 43743991. The reversal of 43743982 is 28934734.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×43743982² = 3827071922432648, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a pancake number, because a pancake can be divided into 43743982 parts by 9353 straight cuts.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10935994 + ... + 10935997.

It is an arithmetic number, because the mean of its divisors is an integer number (16403994).

Almost surely, 2^43743982 is an apocalyptic number.

43743982 is a deficient number, since it is larger than the sum of its proper divisors (21871994).

43743982 is a wasteful number, since it uses less digits than its factorization.

43743982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21871993.

The product of its digits is 145152, while the sum is 40.

The square root of 43743982 is about 6613.9233439767. The cubic root of 43743982 is about 352.3487794267.

The spelling of 43743982 in words is "forty-three million, seven hundred forty-three thousand, nine hundred eighty-two".