420469137 has 20 divisors (see below), whose sum is σ = 685210416. Its totient is φ = 254829240.

The previous prime is 420469081. The next prime is 420469139. The reversal of 420469137 is 731964024.

It is not a de Polignac number, because 420469137 - 2¹⁸ = 420206993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420469139) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 235063 + ... + 236844.

Almost surely, 2^420469137 is an apocalyptic number.

It is an amenable number.

420469137 is a deficient number, since it is larger than the sum of its proper divisors (264741279).

420469137 is a wasteful number, since it uses less digits than its factorization.

420469137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471930 (or 471921 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 420469137 is about 20505.3441083050. The cubic root of 420469137 is about 749.1659688666.

The spelling of 420469137 in words is "four hundred twenty million, four hundred sixty-nine thousand, one hundred thirty-seven".