1420856194 has 16 divisors (see below), whose sum is σ = 2157636600. Its totient is φ = 701673984.

The previous prime is 1420856191. The next prime is 1420856221. The reversal of 1420856194 is 4916580241.

It can be written as a sum of positive squares in 4 ways, for example, as 1243620225 + 177235969 = 35265^2 + 13313^2 .

It is not an unprimeable number, because it can be changed into a prime (1420856191) 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, 91552 + ... + 105940.

Almost surely, 2^1420856194 is an apocalyptic number.

1420856194 is a deficient number, since it is larger than the sum of its proper divisors (736780406).

1420856194 is a wasteful number, since it uses less digits than its factorization.

1420856194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14997.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 1420856194 is about 37694.2461656948. The cubic root of 1420856194 is about 1124.2167239759.

The spelling of 1420856194 in words is "one billion, four hundred twenty million, eight hundred fifty-six thousand, one hundred ninety-four".