138763782 has 24 divisors (see below), whose sum is σ = 311023440. Its totient is φ = 44659440.

The previous prime is 138763777. The next prime is 138763789. The reversal of 138763782 is 287367831.

138763782 is a `hidden beast` number, since 1 + 3 + 8 + 7 + 637 + 8 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138763789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132394 + ... + 133437.

It is an arithmetic number, because the mean of its divisors is an integer number (12959310).

Almost surely, 2^138763782 is an apocalyptic number.

138763782 is an abundant number, since it is smaller than the sum of its proper divisors (172259658).

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

138763782 is a wasteful number, since it uses less digits than its factorization.

138763782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265868 (or 265865 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 138763782 is about 11779.8039881825. The cubic root of 138763782 is about 517.7165431373.

The spelling of 138763782 in words is "one hundred thirty-eight million, seven hundred sixty-three thousand, seven hundred eighty-two".