420733071 has 24 divisors (see below), whose sum is σ = 674219520. Its totient is φ = 250664400.

The previous prime is 420733069. The next prime is 420733121. The reversal of 420733071 is 170337024.

It is not a de Polignac number, because 420733071 - 2¹ = 420733069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420733471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30175 + ... + 41856.

It is an arithmetic number, because the mean of its divisors is an integer number (28092480).

Almost surely, 2^420733071 is an apocalyptic number.

420733071 is a deficient number, since it is larger than the sum of its proper divisors (253486449).

420733071 is a wasteful number, since it uses less digits than its factorization.

420733071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72107 (or 72104 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 420733071 is about 20511.7788355862. The cubic root of 420733071 is about 749.3226898521.

The spelling of 420733071 in words is "four hundred twenty million, seven hundred thirty-three thousand, seventy-one".