420578952 has 16 divisors (see below), whose sum is σ = 1051447440. Its totient is φ = 140192976.

The previous prime is 420578933. The next prime is 420578959. The reversal of 420578952 is 259875024.

It is not an unprimeable number, because it can be changed into a prime (420578959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8762038 + ... + 8762085.

It is an arithmetic number, because the mean of its divisors is an integer number (65715465).

Almost surely, 2^420578952 is an apocalyptic number.

It is an amenable number.

420578952 is an abundant number, since it is smaller than the sum of its proper divisors (630868488).

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

420578952 is a wasteful number, since it uses less digits than its factorization.

420578952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17524132 (or 17524128 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 420578952 is about 20508.0216500763. The cubic root of 420578952 is about 749.2311837202.

The spelling of 420578952 in words is "four hundred twenty million, five hundred seventy-eight thousand, nine hundred fifty-two".