420540246 has 36 divisors (see below), whose sum is σ = 1059935292. Its totient is φ = 120154104.

The previous prime is 420540233. The next prime is 420540277. The reversal of 420540246 is 642045024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 237520 + ... + 239283.

It is an arithmetic number, because the mean of its divisors is an integer number (29442647).

Almost surely, 2^420540246 is an apocalyptic number.

420540246 is an abundant number, since it is smaller than the sum of its proper divisors (639395046).

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

420540246 is a wasteful number, since it uses less digits than its factorization.

420540246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476825 (or 476815 counting only the distinct ones).

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

The square root of 420540246 is about 20507.0779488449. The cubic root of 420540246 is about 749.2081990291.

The spelling of 420540246 in words is "four hundred twenty million, five hundred forty thousand, two hundred forty-six".