420707252 has 24 divisors (see below), whose sum is σ = 843556224. Its totient is φ = 179844192.

The previous prime is 420707251. The next prime is 420707267. The reversal of 420707252 is 252707024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420707251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7808 + ... + 30039.

It is an arithmetic number, because the mean of its divisors is an integer number (35148176).

Almost surely, 2^420707252 is an apocalyptic number.

It is an amenable number.

420707252 is an abundant number, since it is smaller than the sum of its proper divisors (422848972).

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

420707252 is a wasteful number, since it uses less digits than its factorization.

420707252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38255 (or 38253 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 420707252 is about 20511.1494558447. The cubic root of 420707252 is about 749.3073617184.

The spelling of 420707252 in words is "four hundred twenty million, seven hundred seven thousand, two hundred fifty-two".