1438909496532 has 120 divisors (see below), whose sum is σ = 3886517583872. Its totient is φ = 463736145600.

The previous prime is 1438909496503. The next prime is 1438909496551. The reversal of 1438909496532 is 2356949098341.

1438909496532 is a `hidden beast` number, since 1 + 4 + 3 + 8 + 9 + 0 + 9 + 4 + 96 + 532 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1438909496532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10912557 + ... + 11043627.

Almost surely, 2^{1438909496532} is an apocalyptic number.

1438909496532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1438909496532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1943258791936).

1438909496532 is an abundant number, since it is smaller than the sum of its proper divisors (2447608087340).

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

1438909496532 is a wasteful number, since it uses less digits than its factorization.

1438909496532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132211 (or 132200 counting only the distinct ones).

The product of its (nonzero) digits is 50388480, while the sum is 63.

The spelling of 1438909496532 in words is "one trillion, four hundred thirty-eight billion, nine hundred nine million, four hundred ninety-six thousand, five hundred thirty-two".