138429410 has 96 divisors (see below), whose sum is σ = 308489472. Its totient is φ = 44499840.

The previous prime is 138429397. The next prime is 138429449. The reversal of 138429410 is 14924831.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 800084 + ... + 800256.

It is an arithmetic number, because the mean of its divisors is an integer number (3213432).

Almost surely, 2^138429410 is an apocalyptic number.

138429410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138429410 is an abundant number, since it is smaller than the sum of its proper divisors (170060062).

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

138429410 is a wasteful number, since it uses less digits than its factorization.

138429410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 138429410 is about 11765.6028319844. The cubic root of 138429410 is about 517.3003703084.

The spelling of 138429410 in words is "one hundred thirty-eight million, four hundred twenty-nine thousand, four hundred ten".