1944269425 has 12 divisors (see below), whose sum is σ = 2755307776. Its totient is φ = 1333213200.

The previous prime is 1944269401. The next prime is 1944269441. The reversal of 1944269425 is 5249624491.

It is a happy number.

It is not a de Polignac number, because 1944269425 - 2¹³ = 1944261233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 5554881 + ... + 5555230.

Almost surely, 2^1944269425 is an apocalyptic number.

It is an amenable number.

1944269425 is a deficient number, since it is larger than the sum of its proper divisors (811038351).

1944269425 is a wasteful number, since it uses less digits than its factorization.

1944269425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11110128 (or 11110123 counting only the distinct ones).

The product of its digits is 622080, while the sum is 46.

The square root of 1944269425 is about 44093.8706057883. The cubic root of 1944269425 is about 1248.1079482237.

The spelling of 1944269425 in words is "one billion, nine hundred forty-four million, two hundred sixty-nine thousand, four hundred twenty-five".