43444801 has 2 divisors, whose sum is σ = 43444802. Its totient is φ = 43444800.

The previous prime is 43444799. The next prime is 43444831. The reversal of 43444801 is 10844434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29419776 + 14025025 = 5424^2 + 3745^2 .

It is a cyclic number.

It is not a de Polignac number, because 43444801 - 2¹ = 43444799 is a prime.

Together with 43444799, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 43444801.

It is not a weakly prime, because it can be changed into another prime (43444831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21722400 + 21722401.

It is an arithmetic number, because the mean of its divisors is an integer number (21722401).

Almost surely, 2^43444801 is an apocalyptic number.

It is an amenable number.

43444801 is a deficient number, since it is larger than the sum of its proper divisors (1).

43444801 is an equidigital number, since it uses as much as digits as its factorization.

43444801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 43444801 is about 6591.2670253905. The cubic root of 43444801 is about 351.5436606504.

The spelling of 43444801 in words is "forty-three million, four hundred forty-four thousand, eight hundred one".