420455567 has 8 divisors (see below), whose sum is σ = 483299616. Its totient is φ = 358306272.

The previous prime is 420455549. The next prime is 420455569. The reversal of 420455567 is 765554024.

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 420455567 - 2¹⁴ = 420439183 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 420455567.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420455569) 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, 172388 + ... + 174809.

It is an arithmetic number, because the mean of its divisors is an integer number (60412452).

Almost surely, 2^420455567 is an apocalyptic number.

420455567 is a deficient number, since it is larger than the sum of its proper divisors (62844049).

420455567 is a wasteful number, since it uses less digits than its factorization.

420455567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347377.

The product of its (nonzero) digits is 168000, while the sum is 38.

The square root of 420455567 is about 20505.0132162845. The cubic root of 420455567 is about 749.1579093836.

The spelling of 420455567 in words is "four hundred twenty million, four hundred fifty-five thousand, five hundred sixty-seven".