420235741 has 2 divisors, whose sum is σ = 420235742. Its totient is φ = 420235740.

The previous prime is 420235729. The next prime is 420235747. The reversal of 420235741 is 147532024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 419840100 + 395641 = 20490^2 + 629^2 .

It is a cyclic number.

It is not a de Polignac number, because 420235741 - 2²³ = 411847133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420235747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210117870 + 210117871.

It is an arithmetic number, because the mean of its divisors is an integer number (210117871).

Almost surely, 2^420235741 is an apocalyptic number.

It is an amenable number.

420235741 is a deficient number, since it is larger than the sum of its proper divisors (1).

420235741 is an equidigital number, since it uses as much as digits as its factorization.

420235741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 420235741 is about 20499.6522165621. The cubic root of 420235741 is about 749.0273263459.

Adding to 420235741 its reverse (147532024), we get a palindrome (567767765).

The spelling of 420235741 in words is "four hundred twenty million, two hundred thirty-five thousand, seven hundred forty-one".