420875049 has 16 divisors (see below), whose sum is σ = 642994560. Its totient is φ = 239877120.

The previous prime is 420875047. The next prime is 420875071. The reversal of 420875049 is 940578024.

It is not a de Polignac number, because 420875049 - 2¹ = 420875047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420874998 and 420875016.

It is not an unprimeable number, because it can be changed into a prime (420875047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17592 + ... + 33929.

It is an arithmetic number, because the mean of its divisors is an integer number (40187160).

Almost surely, 2^420875049 is an apocalyptic number.

It is an amenable number.

420875049 is a deficient number, since it is larger than the sum of its proper divisors (222119511).

420875049 is a wasteful number, since it uses less digits than its factorization.

420875049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51920.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 420875049 is about 20515.2394331629. The cubic root of 420875049 is about 749.4069676515.

The spelling of 420875049 in words is "four hundred twenty million, eight hundred seventy-five thousand, forty-nine".