420332930172 has 36 divisors (see below), whose sum is σ = 1071910978320. Its totient is φ = 138871055232.

The previous prime is 420332930137. The next prime is 420332930201. The reversal of 420332930172 is 271039233024.

420332930172 is a `hidden beast` number, since 4 + 20 + 3 + 329 + 301 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51659272 + ... + 51667407.

Almost surely, 2^420332930172 is an apocalyptic number.

It is an amenable number.

420332930172 is an abundant number, since it is smaller than the sum of its proper divisors (651578048148).

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

420332930172 is a wasteful number, since it uses less digits than its factorization.

420332930172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103326802 (or 103326797 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The spelling of 420332930172 in words is "four hundred twenty billion, three hundred thirty-two million, nine hundred thirty thousand, one hundred seventy-two".