1144012340 has 24 divisors (see below), whose sum is σ = 2461023432. Its totient is φ = 446443520.

The previous prime is 1144012333. The next prime is 1144012379. The reversal of 1144012340 is 432104411.

It can be written as a sum of positive squares in 4 ways, for example, as 355216 + 1143657124 = 596^2 + 33818^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 696749 + ... + 698388.

It is an arithmetic number, because the mean of its divisors is an integer number (102542643).

Almost surely, 2^1144012340 is an apocalyptic number.

1144012340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144012340 is an abundant number, since it is smaller than the sum of its proper divisors (1317011092).

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

1144012340 is a wasteful number, since it uses less digits than its factorization.

1144012340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395187 (or 1395185 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1144012340 is about 33823.2514699578. The cubic root of 1144012340 is about 1045.8680668171.

Adding to 1144012340 its reverse (432104411), we get a palindrome (1576116751).

The spelling of 1144012340 in words is "one billion, one hundred forty-four million, twelve thousand, three hundred forty".