1144300440 has 64 divisors (see below), whose sum is σ = 3435125760. Its totient is φ = 304949120.

The previous prime is 1144300429. The next prime is 1144300459. The reversal of 1144300440 is 440034411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359737 + ... + 362903.

It is an arithmetic number, because the mean of its divisors is an integer number (53673840).

Almost surely, 2^1144300440 is an apocalyptic number.

1144300440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144300440 is an abundant number, since it is smaller than the sum of its proper divisors (2290825320).

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

1144300440 is a wasteful number, since it uses less digits than its factorization.

1144300440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6192 (or 6188 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1144300440 is about 33827.5101064208. The cubic root of 1144300440 is about 1045.9558541278.

Adding to 1144300440 its reverse (440034411), we get a palindrome (1584334851).

The spelling of 1144300440 in words is "one billion, one hundred forty-four million, three hundred thousand, four hundred forty".