420447016020 has 48 divisors (see below), whose sum is σ = 1177770867840. Its totient is φ = 112069754496.

The previous prime is 420447016001. The next prime is 420447016057. The reversal of 420447016020 is 20610744024.

It is a super-3 number, since 3×420447016020³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1408032 + ... + 1680311.

It is an arithmetic number, because the mean of its divisors is an integer number (24536893080).

Almost surely, 2^420447016020 is an apocalyptic number.

It is an amenable number.

420447016020 is an abundant number, since it is smaller than the sum of its proper divisors (757323851820).

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

420447016020 is a wasteful number, since it uses less digits than its factorization.

420447016020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3090624 (or 3090622 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The spelling of 420447016020 in words is "four hundred twenty billion, four hundred forty-seven million, sixteen thousand, twenty".