1438622729476 has 9 divisors (see below), whose sum is σ = 2517593974581. Its totient is φ = 719310165312.

The previous prime is 1438622729447. The next prime is 1438622729569. The reversal of 1438622729476 is 6749272268341.

The square root of 1438622729476 is 1199426.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 104542288900 + 1334080440576 = 323330^2 + 1155024^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2098996 + ... + 2698708.

Almost surely, 2^{1438622729476} is an apocalyptic number.

1438622729476 is the 1199426-th square number.

It is an amenable number.

1438622729476 is a deficient number, since it is larger than the sum of its proper divisors (1078971245105).

1438622729476 is an frugal number, since it uses more digits than its factorization.

1438622729476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199430 (or 599715 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 61.

The spelling of 1438622729476 in words is "one trillion, four hundred thirty-eight billion, six hundred twenty-two million, seven hundred twenty-nine thousand, four hundred seventy-six".