420384007 has 4 divisors (see below), whose sum is σ = 445112496. Its totient is φ = 395655520.

The previous prime is 420383993. The next prime is 420384011. The reversal of 420384007 is 700483024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420384007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420384037) 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 3 ways as a sum of consecutive naturals, for example, 12364219 + ... + 12364252.

It is an arithmetic number, because the mean of its divisors is an integer number (111278124).

Almost surely, 2^420384007 is an apocalyptic number.

420384007 is a deficient number, since it is larger than the sum of its proper divisors (24728489).

420384007 is a wasteful number, since it uses less digits than its factorization.

420384007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24728488.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 420384007 is about 20503.2682028988. The cubic root of 420384007 is about 749.1154056599.

The spelling of 420384007 in words is "four hundred twenty million, three hundred eighty-four thousand, seven".