420234324100 has 36 divisors (see below), whose sum is σ = 913511258100. Its totient is φ = 167798287360.

The previous prime is 420234324089. The next prime is 420234324157. The reversal of 420234324100 is 1423432024.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 126485499904 + 293748824196 = 355648^2 + 541986^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 3635845 + ... + 3749644.

It is an arithmetic number, because the mean of its divisors is an integer number (25375312725).

Almost surely, 2^420234324100 is an apocalyptic number.

It is an amenable number.

420234324100 is an abundant number, since it is smaller than the sum of its proper divisors (493276934000).

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

420234324100 is a wasteful number, since it uses less digits than its factorization.

420234324100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7386072 (or 7386065 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 420234324100 its reverse (1423432024), we get a palindrome (421657756124).

The spelling of 420234324100 in words is "four hundred twenty billion, two hundred thirty-four million, three hundred twenty-four thousand, one hundred".