1438005073740 has 48 divisors (see below), whose sum is σ = 4026476493312. Its totient is φ = 383462087616.

The previous prime is 1438005073727. The next prime is 1438005073787. The reversal of 1438005073740 is 473705008341.

It is a junction number, because it is equal to n+sod(n) for n = 1438005073692 and 1438005073701.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4860747 + ... + 5148093.

It is an arithmetic number, because the mean of its divisors is an integer number (83884926944).

Almost surely, 2^{1438005073740} is an apocalyptic number.

1438005073740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1438005073740 is an abundant number, since it is smaller than the sum of its proper divisors (2588471419572).

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

1438005073740 is a wasteful number, since it uses less digits than its factorization.

1438005073740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370766 (or 370764 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 42.

The spelling of 1438005073740 in words is "one trillion, four hundred thirty-eight billion, five million, seventy-three thousand, seven hundred forty".