420202471 has 8 divisors (see below), whose sum is σ = 453345984. Its totient is φ = 387176160.

The previous prime is 420202463. The next prime is 420202507. The reversal of 420202471 is 174202024.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 420202471 - 2³ = 420202463 is a prime.

It is a super-3 number, since 3×420202471³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420202441) 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 7 ways as a sum of consecutive naturals, for example, 21775 + ... + 36256.

It is an arithmetic number, because the mean of its divisors is an integer number (56668248).

Almost surely, 2^420202471 is an apocalyptic number.

420202471 is a deficient number, since it is larger than the sum of its proper divisors (33143513).

420202471 is a wasteful number, since it uses less digits than its factorization.

420202471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58601.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 420202471 is about 20498.8407233190. The cubic root of 420202471 is about 749.0075590309.

Adding to 420202471 its reverse (174202024), we get a palindrome (594404495).

The spelling of 420202471 in words is "four hundred twenty million, two hundred two thousand, four hundred seventy-one".