420324471 has 80 divisors (see below), whose sum is σ = 757177344. Its totient is φ = 227183616.

The previous prime is 420324469. The next prime is 420324481. The reversal of 420324471 is 174423024.

It is not a de Polignac number, because 420324471 - 2¹ = 420324469 is a prime.

It is a super-3 number, since 3×420324471³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420324481) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2177751 + ... + 2177943.

Almost surely, 2^420324471 is an apocalyptic number.

420324471 is a deficient number, since it is larger than the sum of its proper divisors (336852873).

420324471 is a wasteful number, since it uses less digits than its factorization.

420324471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 420324471 is about 20501.8162853929. The cubic root of 420324471 is about 749.0800400262.

Adding to 420324471 its reverse (174423024), we get a palindrome (594747495).

The spelling of 420324471 in words is "four hundred twenty million, three hundred twenty-four thousand, four hundred seventy-one".