1994444245 has 16 divisors (see below), whose sum is σ = 2410560000. Its totient is φ = 1584112768.

The previous prime is 1994444171. The next prime is 1994444329. The reversal of 1994444245 is 5424444991.

It is a cyclic number.

It is not a de Polignac number, because 1994444245 - 2⁹ = 1994443733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1994444195 and 1994444204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426681 + ... + 431329.

It is an arithmetic number, because the mean of its divisors is an integer number (150660000).

Almost surely, 2^1994444245 is an apocalyptic number.

It is an amenable number.

1994444245 is a deficient number, since it is larger than the sum of its proper divisors (416115755).

1994444245 is a wasteful number, since it uses less digits than its factorization.

1994444245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5252.

The product of its digits is 829440, while the sum is 46.

The square root of 1994444245 is about 44659.2011236207. The cubic root of 1994444245 is about 1258.7533325224.

It can be divided in two parts, 199 and 4444245, that added together give a palindrome (4444444).

The spelling of 1994444245 in words is "one billion, nine hundred ninety-four million, four hundred forty-four thousand, two hundred forty-five".