420312208 has 10 divisors (see below), whose sum is σ = 814354934. Its totient is φ = 210156096.

The previous prime is 420312187. The next prime is 420312223. The reversal of 420312208 is 802213024.

It can be written as a sum of positive squares in only one way, i.e., 362064784 + 58247424 = 19028^2 + 7632^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13134741 + ... + 13134772.

Almost surely, 2^420312208 is an apocalyptic number.

It is an amenable number.

420312208 is a deficient number, since it is larger than the sum of its proper divisors (394042726).

420312208 is a wasteful number, since it uses less digits than its factorization.

420312208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26269521 (or 26269515 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 420312208 is about 20501.5172121480. The cubic root of 420312208 is about 749.0727551321.

The spelling of 420312208 in words is "four hundred twenty million, three hundred twelve thousand, two hundred eight".