420342125 has 16 divisors (see below), whose sum is σ = 599529216. Its totient is φ = 288234000.

The previous prime is 420342101. The next prime is 420342133. The reversal of 420342125 is 521243024.

It is a happy number.

It is not a de Polignac number, because 420342125 - 2⁸ = 420341869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420342125.

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, 239321 + ... + 241070.

It is an arithmetic number, because the mean of its divisors is an integer number (37470576).

Almost surely, 2^420342125 is an apocalyptic number.

It is an amenable number.

420342125 is a deficient number, since it is larger than the sum of its proper divisors (179187091).

420342125 is an equidigital number, since it uses as much as digits as its factorization.

420342125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480413 (or 480403 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 420342125 is about 20502.2468280918. The cubic root of 420342125 is about 749.0905272211.

Adding to 420342125 its reverse (521243024), we get a palindrome (941585149).

The spelling of 420342125 in words is "four hundred twenty million, three hundred forty-two thousand, one hundred twenty-five".