1438112340 has 96 divisors (see below), whose sum is σ = 5113301760. Its totient is φ = 328710528.

The previous prime is 1438112323. The next prime is 1438112363. The reversal of 1438112340 is 432118341.

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, 186447 + ... + 194006.

It is an arithmetic number, because the mean of its divisors is an integer number (53263560).

Almost surely, 2^1438112340 is an apocalyptic number.

1438112340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1438112340 is an abundant number, since it is smaller than the sum of its proper divisors (3675189420).

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

1438112340 is a wasteful number, since it uses less digits than its factorization.

1438112340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380478 (or 380470 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1438112340 is about 37922.4516612521. The cubic root of 1438112340 is about 1128.7495866490.

The spelling of 1438112340 in words is "one billion, four hundred thirty-eight million, one hundred twelve thousand, three hundred forty".