3642220423 has 2 divisors, whose sum is σ = 3642220424. Its totient is φ = 3642220422.

The previous prime is 3642220339. The next prime is 3642220429. The reversal of 3642220423 is 3240222463.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3642220423 - 2²¹ = 3640123271 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3642220391 and 3642220400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3642220429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1821110211 + 1821110212.

It is an arithmetic number, because the mean of its divisors is an integer number (1821110212).

Almost surely, 2^3642220423 is an apocalyptic number.

3642220423 is a deficient number, since it is larger than the sum of its proper divisors (1).

3642220423 is an equidigital number, since it uses as much as digits as its factorization.

3642220423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 28.

The square root of 3642220423 is about 60350.8112870076. The cubic root of 3642220423 is about 1538.5870583057.

Adding to 3642220423 its reverse (3240222463), we get a palindrome (6882442886).

The spelling of 3642220423 in words is "three billion, six hundred forty-two million, two hundred twenty thousand, four hundred twenty-three".