420233634524 has 72 divisors (see below), whose sum is σ = 844137461664. Its totient is φ = 182569446400.

The previous prime is 420233634521. The next prime is 420233634599. The reversal of 420233634524 is 425436332024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420233634521) 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, 15136784 + ... + 15164520.

It is an arithmetic number, because the mean of its divisors is an integer number (11724131412).

Almost surely, 2^420233634524 is an apocalyptic number.

420233634524 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

420233634524 is an abundant number, since it is smaller than the sum of its proper divisors (423903827140).

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

420233634524 is a wasteful number, since it uses less digits than its factorization.

420233634524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29147 (or 29134 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 38.

Adding to 420233634524 its reverse (425436332024), we get a palindrome (845669966548).

The spelling of 420233634524 in words is "four hundred twenty billion, two hundred thirty-three million, six hundred thirty-four thousand, five hundred twenty-four".