1944920469 has 8 divisors (see below), whose sum is σ = 2618404672. Its totient is φ = 1284024960.

The previous prime is 1944920449. The next prime is 1944920473. The reversal of 1944920469 is 9640294491.

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

It is not a de Polignac number, because 1944920469 - 2²⁴ = 1928143253 is a prime.

It is a super-2 number, since 2×1944920469² = 7565431261470359922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1944920449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3146812 + ... + 3147429.

It is an arithmetic number, because the mean of its divisors is an integer number (327300584).

Almost surely, 2^1944920469 is an apocalyptic number.

It is an amenable number.

1944920469 is a deficient number, since it is larger than the sum of its proper divisors (673484203).

1944920469 is a wasteful number, since it uses less digits than its factorization.

1944920469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6294347.

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 1944920469 is about 44101.2524652078. The cubic root of 1944920469 is about 1248.2472434777.

The spelling of 1944920469 in words is "one billion, nine hundred forty-four million, nine hundred twenty thousand, four hundred sixty-nine".