1144433340 has 96 divisors (see below), whose sum is σ = 3567600960. Its totient is φ = 304570368.

The previous prime is 1144433321. The next prime is 1144433359. The reversal of 1144433340 is 433344411.

It is an interprime number because it is at equal distance from previous prime (1144433321) and next prime (1144433359).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 309744 + ... + 313416.

It is an arithmetic number, because the mean of its divisors is an integer number (37162510).

Almost surely, 2^1144433340 is an apocalyptic number.

1144433340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144433340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1783800480).

1144433340 is an abundant number, since it is smaller than the sum of its proper divisors (2423167620).

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

1144433340 is a wasteful number, since it uses less digits than its factorization.

1144433340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4268 (or 4260 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 1144433340 is about 33829.4744268958. The cubic root of 1144433340 is about 1045.9963452864.

Adding to 1144433340 its reverse (433344411), we get a palindrome (1577777751).

The spelling of 1144433340 in words is "one billion, one hundred forty-four million, four hundred thirty-three thousand, three hundred forty".