420504052 has 24 divisors (see below), whose sum is σ = 754846400. Its totient is φ = 204857856.

The previous prime is 420504047. The next prime is 420504059. The reversal of 420504052 is 250405024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420504059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72724 + ... + 78292.

Almost surely, 2^420504052 is an apocalyptic number.

It is an amenable number.

420504052 is a deficient number, since it is larger than the sum of its proper divisors (334342348).

420504052 is a wasteful number, since it uses less digits than its factorization.

420504052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6055 (or 6053 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 420504052 is about 20506.1954540573. The cubic root of 420504052 is about 749.1867047570.

Adding to 420504052 its reverse (250405024), we get a palindrome (670909076).

The spelling of 420504052 in words is "four hundred twenty million, five hundred four thousand, fifty-two".