1944269442 has 24 divisors (see below), whose sum is σ = 4395740544. Its totient is φ = 619911864.

The previous prime is 1944269441. The next prime is 1944269461. The reversal of 1944269442 is 2449624491.

It is not an unprimeable number, because it can be changed into a prime (1944269441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2347738 + ... + 2348565.

It is an arithmetic number, because the mean of its divisors is an integer number (183155856).

Almost surely, 2^1944269442 is an apocalyptic number.

1944269442 is an abundant number, since it is smaller than the sum of its proper divisors (2451471102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1944269442 is a wasteful number, since it uses less digits than its factorization.

1944269442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4696334 (or 4696331 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 1944269442 is about 44093.8707985588. The cubic root of 1944269442 is about 1248.1079518614.

The spelling of 1944269442 in words is "one billion, nine hundred forty-four million, two hundred sixty-nine thousand, four hundred forty-two".