420322252 has 12 divisors (see below), whose sum is σ = 840644560. Its totient is φ = 180138096.

The previous prime is 420322249. The next prime is 420322267. The reversal of 420322252 is 252223024.

It is a happy number.

420322252 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7505727 + ... + 7505782.

Almost surely, 2^420322252 is an apocalyptic number.

It is an amenable number.

420322252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420322252 is a wasteful number, since it uses less digits than its factorization.

420322252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15011520 (or 15011518 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 420322252 is about 20501.7621681650. The cubic root of 420322252 is about 749.0787218291.

Adding to 420322252 its reverse (252223024), we get a palindrome (672545276).

The spelling of 420322252 in words is "four hundred twenty million, three hundred twenty-two thousand, two hundred fifty-two".