420328117 has 16 divisors (see below), whose sum is σ = 475689600. Its totient is φ = 367899840.

The previous prime is 420328099. The next prime is 420328121. The reversal of 420328117 is 711823024.

It is not a de Polignac number, because 420328117 - 2⁷ = 420327989 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 (420328147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124984 + ... + 128302.

It is an arithmetic number, because the mean of its divisors is an integer number (29730600).

Almost surely, 2^420328117 is an apocalyptic number.

It is an amenable number.

420328117 is a deficient number, since it is larger than the sum of its proper divisors (55361483).

420328117 is a wasteful number, since it uses less digits than its factorization.

420328117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3756.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 420328117 is about 20501.9052041511. The cubic root of 420328117 is about 749.0822059228.

The spelling of 420328117 in words is "four hundred twenty million, three hundred twenty-eight thousand, one hundred seventeen".