42457801 has 2 divisors, whose sum is σ = 42457802. Its totient is φ = 42457800.

The previous prime is 42457783. The next prime is 42457819. The reversal of 42457801 is 10875424.

It is a balanced prime because it is at equal distance from previous prime (42457783) and next prime (42457819).

It can be written as a sum of positive squares in only one way, i.e., 41409225 + 1048576 = 6435^2 + 1024^2 .

It is a cyclic number.

It is not a de Polignac number, because 42457801 - 2¹³ = 42449609 is a prime.

It is not a weakly prime, because it can be changed into another prime (42457871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21228900 + 21228901.

It is an arithmetic number, because the mean of its divisors is an integer number (21228901).

Almost surely, 2^42457801 is an apocalyptic number.

It is an amenable number.

42457801 is a deficient number, since it is larger than the sum of its proper divisors (1).

42457801 is an equidigital number, since it uses as much as digits as its factorization.

42457801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 42457801 is about 6515.9650858488. The cubic root of 42457801 is about 348.8610624208.

The spelling of 42457801 in words is "forty-two million, four hundred fifty-seven thousand, eight hundred one".