1945433049 has 8 divisors (see below), whose sum is σ = 2964469440. Its totient is φ = 1111676016.

The previous prime is 1945433041. The next prime is 1945433051. The reversal of 1945433049 is 9403345491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1945433049 - 2³ = 1945433041 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1945433049.

It is not an unprimeable number, because it can be changed into a prime (1945433041) 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, 46319814 + ... + 46319855.

It is an arithmetic number, because the mean of its divisors is an integer number (370558680).

Almost surely, 2^1945433049 is an apocalyptic number.

It is an amenable number.

1945433049 is a deficient number, since it is larger than the sum of its proper divisors (1019036391).

1945433049 is an equidigital number, since it uses as much as digits as its factorization.

1945433049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92639679.

The product of its (nonzero) digits is 233280, while the sum is 42.

The square root of 1945433049 is about 44107.0634819413. The cubic root of 1945433049 is about 1248.3568915554.

The spelling of 1945433049 in words is "one billion, nine hundred forty-five million, four hundred thirty-three thousand, forty-nine".