420233413 has 2 divisors, whose sum is σ = 420233414. Its totient is φ = 420233412.

The previous prime is 420233371. The next prime is 420233417. The reversal of 420233413 is 314332024.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 289748484 + 130484929 = 17022^2 + 11423^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420233413 is a prime.

It is a super-2 number, since 2×420233413² = 353192242803257138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420233417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210116706 + 210116707.

It is an arithmetic number, because the mean of its divisors is an integer number (210116707).

Almost surely, 2^420233413 is an apocalyptic number.

It is an amenable number.

420233413 is a deficient number, since it is larger than the sum of its proper divisors (1).

420233413 is an equidigital number, since it uses as much as digits as its factorization.

420233413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 420233413 is about 20499.5954350324. The cubic root of 420233413 is about 749.0259432025.

Adding to 420233413 its reverse (314332024), we get a palindrome (734565437).

The spelling of 420233413 in words is "four hundred twenty million, two hundred thirty-three thousand, four hundred thirteen".