43802057 has 4 divisors (see below), whose sum is σ = 47171460. Its totient is φ = 40432656.

The previous prime is 43802053. The next prime is 43802111. The reversal of 43802057 is 75020834.

It is a happy number.

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 2572816 + 41229241 = 1604^2 + 6421^2 .

It is a cyclic number.

It is not a de Polignac number, because 43802057 - 2² = 43802053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43802053) 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, 1684682 + ... + 1684707.

It is an arithmetic number, because the mean of its divisors is an integer number (11792865).

Almost surely, 2^43802057 is an apocalyptic number.

It is an amenable number.

43802057 is a deficient number, since it is larger than the sum of its proper divisors (3369403).

43802057 is a wasteful number, since it uses less digits than its factorization.

43802057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3369402.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 43802057 is about 6618.3122470914. The cubic root of 43802057 is about 352.5046378680.

The spelling of 43802057 in words is "forty-three million, eight hundred two thousand, fifty-seven".