420616403 has 8 divisors (see below), whose sum is σ = 425823840. Its totient is φ = 415419840.

The previous prime is 420616393. The next prime is 420616409. The reversal of 420616403 is 304616024.

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 420616403 - 2²⁸ = 152180947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420616409) 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, 97298 + ... + 101528.

It is an arithmetic number, because the mean of its divisors is an integer number (53227980).

Almost surely, 2^420616403 is an apocalyptic number.

420616403 is a deficient number, since it is larger than the sum of its proper divisors (5207437).

420616403 is a wasteful number, since it uses less digits than its factorization.

420616403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5437.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 420616403 is about 20508.9347114861. The cubic root of 420616403 is about 749.2534218154.

The spelling of 420616403 in words is "four hundred twenty million, six hundred sixteen thousand, four hundred three".