1144738450 has 48 divisors (see below), whose sum is σ = 2188938024. Its totient is φ = 445132800.

The previous prime is 1144738447. The next prime is 1144738481. The reversal of 1144738450 is 548374411.

It can be written as a sum of positive squares in 12 ways, for example, as 66732561 + 1078005889 = 8169^2 + 32833^2 .

It is a super-2 number, since 2×1144738450² = 2620852237816805000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 690022 + ... + 691678.

Almost surely, 2^1144738450 is an apocalyptic number.

1144738450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1144738450 is a deficient number, since it is larger than the sum of its proper divisors (1044199574).

1144738450 is a wasteful number, since it uses less digits than its factorization.

1144738450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2047 (or 2042 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 1144738450 is about 33833.9836554905. The cubic root of 1144738450 is about 1046.0892924759.

The spelling of 1144738450 in words is "one billion, one hundred forty-four million, seven hundred thirty-eight thousand, four hundred fifty".