420570018 has 48 divisors (see below), whose sum is σ = 995615712. Its totient is φ = 127248000.

The previous prime is 420570013. The next prime is 420570037. The reversal of 420570018 is 810075024.

It is a junction number, because it is equal to n+sod(n) for n = 420569973 and 420570000.

It is not an unprimeable number, because it can be changed into a prime (420570011) 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, 173233 + ... + 175643.

It is an arithmetic number, because the mean of its divisors is an integer number (20741994).

Almost surely, 2^420570018 is an apocalyptic number.

420570018 is an abundant number, since it is smaller than the sum of its proper divisors (575045694).

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

420570018 is a wasteful number, since it uses less digits than its factorization.

420570018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3311 (or 3308 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 420570018 is about 20507.8038317125. The cubic root of 420570018 is about 749.2258785896.

The spelling of 420570018 in words is "four hundred twenty million, five hundred seventy thousand, eighteen".