420404767 has 8 divisors (see below), whose sum is σ = 433382400. Its totient is φ = 407512224.

The previous prime is 420404753. The next prime is 420404771. The reversal of 420404767 is 767404024.

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 420404767 - 2²⁷ = 286187039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420402767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11167 + ... + 31072.

It is an arithmetic number, because the mean of its divisors is an integer number (54172800).

Almost surely, 2^420404767 is an apocalyptic number.

420404767 is a deficient number, since it is larger than the sum of its proper divisors (12977633).

420404767 is a wasteful number, since it uses less digits than its factorization.

420404767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42545.

The product of its (nonzero) digits is 37632, while the sum is 34.

The square root of 420404767 is about 20503.7744574017. The cubic root of 420404767 is about 749.1277367505.

The spelling of 420404767 in words is "four hundred twenty million, four hundred four thousand, seven hundred sixty-seven".