1438694286 has 8 divisors (see below), whose sum is σ = 2877388584. Its totient is φ = 479564760.

The previous prime is 1438694261. The next prime is 1438694297. The reversal of 1438694286 is 6824968341.

1438694286 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

1438694286 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119891185 + ... + 119891196.

It is an arithmetic number, because the mean of its divisors is an integer number (359673573).

Almost surely, 2^1438694286 is an apocalyptic number.

1438694286 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1438694286 is a wasteful number, since it uses less digits than its factorization.

1438694286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239782386.

The product of its digits is 1990656, while the sum is 51.

The square root of 1438694286 is about 37930.1237277181. The cubic root of 1438694286 is about 1128.9018192448.

The spelling of 1438694286 in words is "one billion, four hundred thirty-eight million, six hundred ninety-four thousand, two hundred eighty-six".