420540024 has 16 divisors (see below), whose sum is σ = 1051350120. Its totient is φ = 140180000.

The previous prime is 420540011. The next prime is 420540031. The reversal of 420540024 is 420045024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8761227 + ... + 8761274.

Almost surely, 2^420540024 is an apocalyptic number.

It is an amenable number.

420540024 is an abundant number, since it is smaller than the sum of its proper divisors (630810096).

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

420540024 is a wasteful number, since it uses less digits than its factorization.

420540024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17522510 (or 17522506 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 420540024 is about 20507.0725360789. The cubic root of 420540024 is about 749.2080671953.

Adding to 420540024 its reverse (420045024), we get a palindrome (840585048).

The spelling of 420540024 in words is "four hundred twenty million, five hundred forty thousand, twenty-four".