420415306 has 8 divisors (see below), whose sum is σ = 636745824. Its totient is φ = 208166700.

The previous prime is 420415283. The next prime is 420415381. The reversal of 420415306 is 603514024.

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

It is an unprimeable number.

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, 1020220 + ... + 1020631.

It is an arithmetic number, because the mean of its divisors is an integer number (79593228).

Almost surely, 2^420415306 is an apocalyptic number.

420415306 is a deficient number, since it is larger than the sum of its proper divisors (216330518).

420415306 is a wasteful number, since it uses less digits than its factorization.

420415306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040956.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 420415306 is about 20504.0314572525. The cubic root of 420415306 is about 749.1339965838.

The spelling of 420415306 in words is "four hundred twenty million, four hundred fifteen thousand, three hundred six".