1914144772 has 6 divisors (see below), whose sum is σ = 3349753358. Its totient is φ = 957072384.

The previous prime is 1914144731. The next prime is 1914144773. The reversal of 1914144772 is 2774414191.

It can be written as a sum of positive squares in only one way, i.e., 1871946756 + 42198016 = 43266^2 + 6496^2 .

It is not an unprimeable number, because it can be changed into a prime (1914144773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239268093 + ... + 239268100.

Almost surely, 2^1914144772 is an apocalyptic number.

It is an amenable number.

1914144772 is a deficient number, since it is larger than the sum of its proper divisors (1435608586).

1914144772 is a wasteful number, since it uses less digits than its factorization.

1914144772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478536197 (or 478536195 counting only the distinct ones).

The product of its digits is 56448, while the sum is 40.

The square root of 1914144772 is about 43750.9402413251. The cubic root of 1914144772 is about 1241.6282745683.

The spelling of 1914144772 in words is "one billion, nine hundred fourteen million, one hundred forty-four thousand, seven hundred seventy-two".