423756241 has 2 divisors, whose sum is σ = 423756242. Its totient is φ = 423756240.

The previous prime is 423756211. The next prime is 423756293. The reversal of 423756241 is 142657324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 384003216 + 39753025 = 19596^2 + 6305^2 .

It is a cyclic number.

It is not a de Polignac number, because 423756241 - 2¹³ = 423748049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 423756197 and 423756206.

It is not a weakly prime, because it can be changed into another prime (423756211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211878120 + 211878121.

It is an arithmetic number, because the mean of its divisors is an integer number (211878121).

Almost surely, 2^423756241 is an apocalyptic number.

It is an amenable number.

423756241 is a deficient number, since it is larger than the sum of its proper divisors (1).

423756241 is an equidigital number, since it uses as much as digits as its factorization.

423756241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 34.

The square root of 423756241 is about 20585.3404392543. The cubic root of 423756241 is about 751.1131565076.

The spelling of 423756241 in words is "four hundred twenty-three million, seven hundred fifty-six thousand, two hundred forty-one".