56943842 has 8 divisors (see below), whose sum is σ = 85658796. Its totient is φ = 28390912.

The previous prime is 56943841. The next prime is 56943853. The reversal of 56943842 is 24834965.

56943842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 50537881 + 6405961 = 7109^2 + 2531^2 .

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

It is a super-2 number, since 2×56943842² = 6485202283441928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56943842.

It is not an unprimeable number, because it can be changed into a prime (56943841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39623 + ... + 41034.

Almost surely, 2^56943842 is an apocalyptic number.

56943842 is a deficient number, since it is larger than the sum of its proper divisors (28714954).

56943842 is a wasteful number, since it uses less digits than its factorization.

56943842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81012.

The product of its digits is 207360, while the sum is 41.

The square root of 56943842 is about 7546.1143643600. The cubic root of 56943842 is about 384.7236832197.

The spelling of 56943842 in words is "fifty-six million, nine hundred forty-three thousand, eight hundred forty-two".