210139338 has 8 divisors (see below), whose sum is σ = 420278688. Its totient is φ = 70046444.

The previous prime is 210139337. The next prime is 210139343. The reversal of 210139338 is 833931012.

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

210139338 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (210139337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17511606 + ... + 17511617.

It is an arithmetic number, because the mean of its divisors is an integer number (52534836).

Almost surely, 2^210139338 is an apocalyptic number.

210139338 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.

210139338 is a wasteful number, since it uses less digits than its factorization.

210139338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35023228.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 210139338 is about 14496.1835667185. The cubic root of 210139338 is about 594.5236287822.

The spelling of 210139338 in words is "two hundred ten million, one hundred thirty-nine thousand, three hundred thirty-eight".