138384710 has 16 divisors (see below), whose sum is σ = 249231600. Its totient is φ = 55322976.

The previous prime is 138384637. The next prime is 138384739. The reversal of 138384710 is 17483831.

138384710 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×138384710³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25736 + ... + 30644.

It is an arithmetic number, because the mean of its divisors is an integer number (15576975).

Almost surely, 2^138384710 is an apocalyptic number.

138384710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138384710 is a deficient number, since it is larger than the sum of its proper divisors (110846890).

138384710 is a wasteful number, since it uses less digits than its factorization.

138384710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7735.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 138384710 is about 11763.7030734374. The cubic root of 138384710 is about 517.2446841265.

The spelling of 138384710 in words is "one hundred thirty-eight million, three hundred eighty-four thousand, seven hundred ten".