1894879946 has 4 divisors (see below), whose sum is σ = 2842319922. Its totient is φ = 947439972.

The previous prime is 1894879939. The next prime is 1894879949. The reversal of 1894879946 is 6499784981.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1766941225 + 127938721 = 42035^2 + 11311^2 .

It is not an unprimeable number, because it can be changed into a prime (1894879949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473719985 + ... + 473719988.

Almost surely, 2^1894879946 is an apocalyptic number.

1894879946 is a deficient number, since it is larger than the sum of its proper divisors (947439976).

1894879946 is an equidigital number, since it uses as much as digits as its factorization.

1894879946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947439975.

The product of its digits is 31352832, while the sum is 65.

The square root of 1894879946 is about 43530.2187681156. The cubic root of 1894879946 is about 1237.4487838682.

The spelling of 1894879946 in words is "one billion, eight hundred ninety-four million, eight hundred seventy-nine thousand, nine hundred forty-six".