10139238 has 24 divisors (see below), whose sum is σ = 22106448. Its totient is φ = 3358512.

The previous prime is 10139231. The next prime is 10139243. The reversal of 10139238 is 83293101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10139231) 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 11 ways as a sum of consecutive naturals, for example, 1320 + ... + 4692.

It is an arithmetic number, because the mean of its divisors is an integer number (921102).

Almost surely, 2^10139238 is an apocalyptic number.

10139238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10139238 is an abundant number, since it is smaller than the sum of its proper divisors (11967210).

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

10139238 is a wasteful number, since it uses less digits than its factorization.

10139238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3548 (or 3545 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 10139238 is about 3184.2170152174. The cubic root of 10139238 is about 216.4387942198.

The spelling of 10139238 in words is "ten million, one hundred thirty-nine thousand, two hundred thirty-eight".