40843057 has 4 divisors (see below), whose sum is σ = 40973860. Its totient is φ = 40712256.

The previous prime is 40843039. The next prime is 40843067. The reversal of 40843057 is 75034804.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7017201 + 33825856 = 2649^2 + 5816^2 .

It is a cyclic number.

It is not a de Polignac number, because 40843057 - 2¹⁹ = 40318769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40843037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64932 + ... + 65557.

It is an arithmetic number, because the mean of its divisors is an integer number (10243465).

Almost surely, 2^40843057 is an apocalyptic number.

It is an amenable number.

40843057 is a deficient number, since it is larger than the sum of its proper divisors (130803).

40843057 is a wasteful number, since it uses less digits than its factorization.

40843057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130802.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 40843057 is about 6390.8572977340. The cubic root of 40843057 is about 344.3811829439.

The spelling of 40843057 in words is "forty million, eight hundred forty-three thousand, fifty-seven".