420044625 has 192 divisors, whose sum is σ = 1019386368. Its totient is φ = 160704000.

The previous prime is 420044587. The next prime is 420044707. The reversal of 420044625 is 526440024.

It is not a de Polignac number, because 420044625 - 2⁸ = 420044369 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1125939 + ... + 1126311.

It is an arithmetic number, because the mean of its divisors is an integer number (5309304).

Almost surely, 2^420044625 is an apocalyptic number.

420044625 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

420044625 is an abundant number, since it is smaller than the sum of its proper divisors (599341743).

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

420044625 is a wasteful number, since it uses less digits than its factorization.

420044625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 420044625 is about 20494.9902415200. The cubic root of 420044625 is about 748.9137608723.

Adding to 420044625 its reverse (526440024), we get a palindrome (946484649).

The spelling of 420044625 in words is "four hundred twenty million, forty-four thousand, six hundred twenty-five".