1144612440 has 96 divisors (see below), whose sum is σ = 3915802800. Its totient is φ = 289163520.

The previous prime is 1144612439. The next prime is 1144612451. The reversal of 1144612440 is 442164411.

1144612440 is a `hidden beast` number, since 1 + 1 + 4 + 4 + 612 + 4 + 40 = 666.

It is a congruent number.

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, 76831 + ... + 90510.

Almost surely, 2^1144612440 is an apocalyptic number.

1144612440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144612440 is an abundant number, since it is smaller than the sum of its proper divisors (2771190360).

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

1144612440 is a wasteful number, since it uses less digits than its factorization.

1144612440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167377 (or 167370 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 1144612440 is about 33832.1214232865. The cubic root of 1144612440 is about 1046.0509074198.

Adding to 1144612440 its reverse (442164411), we get a palindrome (1586776851).

The spelling of 1144612440 in words is "one billion, one hundred forty-four million, six hundred twelve thousand, four hundred forty".