420073305 has 8 divisors (see below), whose sum is σ = 672117312. Its totient is φ = 224039088.

The previous prime is 420073289. The next prime is 420073327. The reversal of 420073305 is 503370024.

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

It is not a de Polignac number, because 420073305 - 2⁴ = 420073289 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14002429 + ... + 14002458.

It is an arithmetic number, because the mean of its divisors is an integer number (84014664).

Almost surely, 2^420073305 is an apocalyptic number.

It is an amenable number.

420073305 is a deficient number, since it is larger than the sum of its proper divisors (252044007).

420073305 is a wasteful number, since it uses less digits than its factorization.

420073305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28004895.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 420073305 is about 20495.6899127597. The cubic root of 420073305 is about 748.9308053770.

The spelling of 420073305 in words is "four hundred twenty million, seventy-three thousand, three hundred five".