420302925 has 120 divisors (see below), whose sum is σ = 900240000. Its totient is φ = 189889920.

The previous prime is 420302921. The next prime is 420302983. The reversal of 420302925 is 529203024.

It is not a de Polignac number, because 420302925 - 2² = 420302921 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420302921) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2111976 + ... + 2112174.

It is an arithmetic number, because the mean of its divisors is an integer number (7502000).

Almost surely, 2^420302925 is an apocalyptic number.

420302925 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

420302925 is an abundant number, since it is smaller than the sum of its proper divisors (479937075).

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

420302925 is a wasteful number, since it uses less digits than its factorization.

420302925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 420302925 is about 20501.2908130196. The cubic root of 420302925 is about 749.0672404270.

Adding to 420302925 its reverse (529203024), we get a palindrome (949505949).

The spelling of 420302925 in words is "four hundred twenty million, three hundred two thousand, nine hundred twenty-five".