420448194 has 24 divisors (see below), whose sum is σ = 933191532. Its totient is φ = 136730880.

The previous prime is 420448187. The next prime is 420448213. The reversal of 420448194 is 491844024.

420448194 is a `hidden beast` number, since 4 + 20 + 448 + 194 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 419717169 + 731025 = 20487^2 + 855^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 284119 + ... + 285594.

Almost surely, 2^420448194 is an apocalyptic number.

420448194 is an abundant number, since it is smaller than the sum of its proper divisors (512743338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420448194 is a wasteful number, since it uses less digits than its factorization.

420448194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569762 (or 569759 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 420448194 is about 20504.8334301940. The cubic root of 420448194 is about 749.1535303449.

The spelling of 420448194 in words is "four hundred twenty million, four hundred forty-eight thousand, one hundred ninety-four".