1438106717 has 16 divisors (see below), whose sum is σ = 1534826880. Its totient is φ = 1344437952.

The previous prime is 1438106711. The next prime is 1438106731. The reversal of 1438106717 is 7176018341.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1438106717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438106711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335534 + ... + 339792.

It is an arithmetic number, because the mean of its divisors is an integer number (95926680).

Almost surely, 2^1438106717 is an apocalyptic number.

It is an amenable number.

1438106717 is a deficient number, since it is larger than the sum of its proper divisors (96720163).

1438106717 is a wasteful number, since it uses less digits than its factorization.

1438106717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4612.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 1438106717 is about 37922.3775230404. The cubic root of 1438106717 is about 1128.7481155152.

The spelling of 1438106717 in words is "one billion, four hundred thirty-eight million, one hundred six thousand, seven hundred seventeen".