420722235 has 64 divisors (see below), whose sum is σ = 777216000. Its totient is φ = 215706240.

The previous prime is 420722219. The next prime is 420722243. The reversal of 420722235 is 532227024.

420722235 is a `hidden beast` number, since 420 + 7 + 2 + 2 + 235 = 666.

420722235 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 420722235 - 2⁴ = 420722219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 420722199 and 420722208.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 958146 + ... + 958584.

It is an arithmetic number, because the mean of its divisors is an integer number (12144000).

Almost surely, 2^420722235 is an apocalyptic number.

420722235 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

420722235 is a deficient number, since it is larger than the sum of its proper divisors (356493765).

420722235 is a wasteful number, since it uses less digits than its factorization.

420722235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713 (or 707 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 420722235 is about 20511.5146929718. The cubic root of 420722235 is about 749.3162568498.

Adding to 420722235 its reverse (532227024), we get a palindrome (952949259).

The spelling of 420722235 in words is "four hundred twenty million, seven hundred twenty-two thousand, two hundred thirty-five".