1994797441 has 16 divisors (see below), whose sum is σ = 2584355200. Its totient is φ = 1495231488.

The previous prime is 1994797421. The next prime is 1994797463. The reversal of 1994797441 is 1447974991.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1994797441 - 2²³ = 1986408833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1994797421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 575136 + ... + 578593.

It is an arithmetic number, because the mean of its divisors is an integer number (161522200).

Almost surely, 2^1994797441 is an apocalyptic number.

It is an amenable number.

1994797441 is a deficient number, since it is larger than the sum of its proper divisors (589557759).

1994797441 is a wasteful number, since it uses less digits than its factorization.

1994797441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153768.

The product of its digits is 2286144, while the sum is 55.

The square root of 1994797441 is about 44663.1552960603. The cubic root of 1994797441 is about 1258.8276323183.

The spelling of 1994797441 in words is "one billion, nine hundred ninety-four million, seven hundred ninety-seven thousand, four hundred forty-one".