1443425340 has 144 divisors (see below), whose sum is σ = 4748968224. Its totient is φ = 326592000.

The previous prime is 1443425311. The next prime is 1443425351. The reversal of 1443425340 is 435243441.

1443425340 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1443425298 and 1443425307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 294510 + ... + 299370.

It is an arithmetic number, because the mean of its divisors is an integer number (32978946).

Almost surely, 2^1443425340 is an apocalyptic number.

1443425340 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 1443425340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2374484112).

1443425340 is an abundant number, since it is smaller than the sum of its proper divisors (3305542884).

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

1443425340 is a wasteful number, since it uses less digits than its factorization.

1443425340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4988 (or 4979 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 1443425340 is about 37992.4379317780. The cubic root of 1443425340 is about 1130.1379057421.

Adding to 1443425340 its reverse (435243441), we get a palindrome (1878668781).

The spelling of 1443425340 in words is "one billion, four hundred forty-three million, four hundred twenty-five thousand, three hundred forty".