420204269 has 4 divisors (see below), whose sum is σ = 421331196. Its totient is φ = 419077344.

The previous prime is 420204263. The next prime is 420204271. The reversal of 420204269 is 962402024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 275892100 + 144312169 = 16610^2 + 12013^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420204269 is a prime.

It is a super-2 number, since 2×420204269² = 353143255371648722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420204263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 562904 + ... + 563649.

It is an arithmetic number, because the mean of its divisors is an integer number (105332799).

Almost surely, 2^420204269 is an apocalyptic number.

It is an amenable number.

420204269 is a deficient number, since it is larger than the sum of its proper divisors (1126927).

420204269 is a wasteful number, since it uses less digits than its factorization.

420204269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126926.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 420204269 is about 20498.8845794107. The cubic root of 420204269 is about 749.0086273362.

The spelling of 420204269 in words is "four hundred twenty million, two hundred four thousand, two hundred sixty-nine".