42442801 has 2 divisors, whose sum is σ = 42442802. Its totient is φ = 42442800.

The previous prime is 42442793. The next prime is 42442819. The reversal of 42442801 is 10824424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26832400 + 15610401 = 5180^2 + 3951^2 .

It is a cyclic number.

It is not a de Polignac number, because 42442801 - 2³ = 42442793 is a prime.

It is not a weakly prime, because it can be changed into another prime (42442891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21221400 + 21221401.

It is an arithmetic number, because the mean of its divisors is an integer number (21221401).

Almost surely, 2^42442801 is an apocalyptic number.

It is an amenable number.

42442801 is a deficient number, since it is larger than the sum of its proper divisors (1).

42442801 is an equidigital number, since it uses as much as digits as its factorization.

42442801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 42442801 is about 6514.8139651106. The cubic root of 42442801 is about 348.8199743115.

The spelling of 42442801 in words is "forty-two million, four hundred forty-two thousand, eight hundred one".