420204357 has 12 divisors (see below), whose sum is σ = 608620480. Its totient is φ = 279370728.

The previous prime is 420204353. The next prime is 420204373. The reversal of 420204357 is 753402024.

420204357 is a `hidden beast` number, since 420 + 204 + 35 + 7 = 666.

It is not a de Polignac number, because 420204357 - 2² = 420204353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420204357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420204353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60307 + ... + 66912.

Almost surely, 2^420204357 is an apocalyptic number.

It is an amenable number.

420204357 is a deficient number, since it is larger than the sum of its proper divisors (188416123).

420204357 is a wasteful number, since it uses less digits than its factorization.

420204357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127592 (or 127589 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 420204357 is about 20498.8867258688. The cubic root of 420204357 is about 749.0086796225.

The spelling of 420204357 in words is "four hundred twenty million, two hundred four thousand, three hundred fifty-seven".