420655307 has 8 divisors (see below), whose sum is σ = 446859600. Its totient is φ = 394857504.

The previous prime is 420655271. The next prime is 420655321. The reversal of 420655307 is 703556024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 420655307 - 2⁶ = 420655243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420655357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99488 + ... + 103629.

It is an arithmetic number, because the mean of its divisors is an integer number (55857450).

Almost surely, 2^420655307 is an apocalyptic number.

420655307 is a deficient number, since it is larger than the sum of its proper divisors (26204293).

420655307 is a wasteful number, since it uses less digits than its factorization.

420655307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203245.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 420655307 is about 20509.8831542259. The cubic root of 420655307 is about 749.2765212921.

The spelling of 420655307 in words is "four hundred twenty million, six hundred fifty-five thousand, three hundred seven".