1438624343 has 16 divisors (see below), whose sum is σ = 1593535776. Its totient is φ = 1290142080.

The previous prime is 1438624333. The next prime is 1438624351. The reversal of 1438624343 is 3434268341.

It is a cyclic number.

It is not a de Polignac number, because 1438624343 - 2⁶ = 1438624279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1438624297 and 1438624306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438624333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393080 + ... + 396722.

It is an arithmetic number, because the mean of its divisors is an integer number (99595986).

Almost surely, 2^1438624343 is an apocalyptic number.

1438624343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1438624343 is a deficient number, since it is larger than the sum of its proper divisors (154911433).

1438624343 is a wasteful number, since it uses less digits than its factorization.

1438624343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4514.

The product of its digits is 165888, while the sum is 38.

The square root of 1438624343 is about 37929.2017184649. The cubic root of 1438624343 is about 1128.8835248649.

The spelling of 1438624343 in words is "one billion, four hundred thirty-eight million, six hundred twenty-four thousand, three hundred forty-three".