420233417 has 2 divisors, whose sum is σ = 420233418. Its totient is φ = 420233416.

The previous prime is 420233413. The next prime is 420233497. The reversal of 420233417 is 714332024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 416935561 + 3297856 = 20419^2 + 1816^2 .

It is a cyclic number.

It is not a de Polignac number, because 420233417 - 2² = 420233413 is a prime.

It is a super-2 number, since 2×420233417² = 353192249526991778, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (420233413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210116708 + 210116709.

It is an arithmetic number, because the mean of its divisors is an integer number (210116709).

Almost surely, 2^420233417 is an apocalyptic number.

It is an amenable number.

420233417 is a deficient number, since it is larger than the sum of its proper divisors (1).

420233417 is an equidigital number, since it uses as much as digits as its factorization.

420233417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 420233417 is about 20499.5955325953. The cubic root of 420233417 is about 749.0259455790.

The spelling of 420233417 in words is "four hundred twenty million, two hundred thirty-three thousand, four hundred seventeen".