420650481 has 32 divisors (see below), whose sum is σ = 613238400. Its totient is φ = 255467520.

The previous prime is 420650437. The next prime is 420650497. The reversal of 420650481 is 184056024.

It is not a de Polignac number, because 420650481 - 2¹⁰ = 420649457 is a prime.

It is a super-2 number, since 2×420650481² = 353893654331062722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (420650411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 655921 + ... + 656561.

It is an arithmetic number, because the mean of its divisors is an integer number (19163700).

Almost surely, 2^420650481 is an apocalyptic number.

It is an amenable number.

420650481 is a deficient number, since it is larger than the sum of its proper divisors (192587919).

420650481 is a wasteful number, since it uses less digits than its factorization.

420650481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 420650481 is about 20509.7655032914. The cubic root of 420650481 is about 749.2736559039.

The spelling of 420650481 in words is "four hundred twenty million, six hundred fifty thousand, four hundred eighty-one".