420537459 has 4 divisors (see below), whose sum is σ = 560716616. Its totient is φ = 280358304.

The previous prime is 420537433. The next prime is 420537479. The reversal of 420537459 is 954735024.

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

It is not a de Polignac number, because 420537459 - 2¹¹ = 420535411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420537419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70089574 + ... + 70089579.

It is an arithmetic number, because the mean of its divisors is an integer number (140179154).

Almost surely, 2^420537459 is an apocalyptic number.

420537459 is a deficient number, since it is larger than the sum of its proper divisors (140179157).

420537459 is a wasteful number, since it uses less digits than its factorization.

420537459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140179156.

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 420537459 is about 20507.0099965841. The cubic root of 420537459 is about 749.2065439772.

The spelling of 420537459 in words is "four hundred twenty million, five hundred thirty-seven thousand, four hundred fifty-nine".