1424144340 has 108 divisors (see below), whose sum is σ = 4464293652. Its totient is φ = 367476480.

The previous prime is 1424144317. The next prime is 1424144387. The reversal of 1424144340 is 434414241.

1424144340 is a `hidden beast` number, since 142 + 41 + 443 + 40 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 388720656 + 1035423684 = 19716^2 + 32178^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 168864 + ... + 177096.

Almost surely, 2^1424144340 is an apocalyptic number.

1424144340 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 1424144340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2232146826).

1424144340 is an abundant number, since it is smaller than the sum of its proper divisors (3040149312).

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

1424144340 is a wasteful number, since it uses less digits than its factorization.

1424144340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8310 (or 8274 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 1424144340 is about 37737.8369809400. The cubic root of 1424144340 is about 1125.0832767983.

Adding to 1424144340 its reverse (434414241), we get a palindrome (1858558581).

The spelling of 1424144340 in words is "one billion, four hundred twenty-four million, one hundred forty-four thousand, three hundred forty".