1438620234336 has 72 divisors (see below), whose sum is σ = 4110465452184. Its totient is φ = 477267356160.

The previous prime is 1438620234319. The next prime is 1438620234347. The reversal of 1438620234336 is 6334320268341.

1438620234336 is a `hidden beast` number, since 1 + 4 + 3 + 8 + 6 + 202 + 3 + 433 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 1438620234291 and 1438620234300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11776221 + ... + 11897756.

It is an arithmetic number, because the mean of its divisors is an integer number (57089797947).

Almost surely, 2^{1438620234336} is an apocalyptic number.

1438620234336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1438620234336 is an abundant number, since it is smaller than the sum of its proper divisors (2671845217848).

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

1438620234336 is a wasteful number, since it uses less digits than its factorization.

1438620234336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23674204 (or 23674193 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 45.

The spelling of 1438620234336 in words is "one trillion, four hundred thirty-eight billion, six hundred twenty million, two hundred thirty-four thousand, three hundred thirty-six".