420004240425 has 432 divisors, whose sum is σ = 978057400320. Its totient is φ = 168542035200.

The previous prime is 420004240387. The next prime is 420004240541. The reversal of 420004240425 is 524042400024.

It is not a de Polignac number, because 420004240425 - 2⁶ = 420004240361 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 876835336 + ... + 876835814.

It is an arithmetic number, because the mean of its divisors is an integer number (2264021760).

Almost surely, 2^420004240425 is an apocalyptic number.

420004240425 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

420004240425 is an abundant number, since it is smaller than the sum of its proper divisors (558053159895).

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

420004240425 is a wasteful number, since it uses less digits than its factorization.

420004240425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674 (or 655 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

Adding to 420004240425 its reverse (524042400024), we get a palindrome (944046640449).

The spelling of 420004240425 in words is "four hundred twenty billion, four million, two hundred forty thousand, four hundred twenty-five".