442371541 has 2 divisors, whose sum is σ = 442371542. Its totient is φ = 442371540.

The previous prime is 442371533. The next prime is 442371599. The reversal of 442371541 is 145173244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 395174641 + 47196900 = 19879^2 + 6870^2 .

It is a cyclic number.

It is not a de Polignac number, because 442371541 - 2³ = 442371533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442471541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221185770 + 221185771.

It is an arithmetic number, because the mean of its divisors is an integer number (221185771).

Almost surely, 2^442371541 is an apocalyptic number.

It is an amenable number.

442371541 is a deficient number, since it is larger than the sum of its proper divisors (1).

442371541 is an equidigital number, since it uses as much as digits as its factorization.

442371541 is an evil number, because the sum of its binary digits is even.

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

The square root of 442371541 is about 21032.6303870914. The cubic root of 442371541 is about 761.9545379931.

The spelling of 442371541 in words is "four hundred forty-two million, three hundred seventy-one thousand, five hundred forty-one".