1438093608 has 64 divisors (see below), whose sum is σ = 4122370560. Its totient is φ = 409530816.

The previous prime is 1438093577. The next prime is 1438093681. The reversal of 1438093608 is 8063908341.

It is a happy number.

It is a super-2 number, since 2×1438093608² = 4136226450740915328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 1438093608.

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, 37635 + ... + 65517.

It is an arithmetic number, because the mean of its divisors is an integer number (64412040).

Almost surely, 2^1438093608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1438093608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2061185280).

1438093608 is an abundant number, since it is smaller than the sum of its proper divisors (2684276952).

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

1438093608 is a wasteful number, since it uses less digits than its factorization.

1438093608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28206 (or 28202 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 1438093608 is about 37922.2046827449. The cubic root of 1438093608 is about 1128.7446858198.

The spelling of 1438093608 in words is "one billion, four hundred thirty-eight million, ninety-three thousand, six hundred eight".