420453205 has 8 divisors (see below), whose sum is σ = 504976032. Its totient is φ = 336074448.

The previous prime is 420453167. The next prime is 420453233. The reversal of 420453205 is 502354024.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420453205 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420453205.

It is a congruent 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, 29487 + ... + 41356.

It is an arithmetic number, because the mean of its divisors is an integer number (63122004).

Almost surely, 2^420453205 is an apocalyptic number.

It is an amenable number.

420453205 is a deficient number, since it is larger than the sum of its proper divisors (84522827).

420453205 is a wasteful number, since it uses less digits than its factorization.

420453205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72035.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 420453205 is about 20504.9556205323. The cubic root of 420453205 is about 749.1565065288.

The spelling of 420453205 in words is "four hundred twenty million, four hundred fifty-three thousand, two hundred five".