10139904 has 108 divisors (see below), whose sum is σ = 30504656. Its totient is φ = 3359232.

The previous prime is 10139881. The next prime is 10139923. The reversal of 10139904 is 40993101.

It is a tau number, because it is divible by the number of its divisors (108).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62127 + ... + 62289.

Almost surely, 2^10139904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10139904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15252328).

10139904 is an abundant number, since it is smaller than the sum of its proper divisors (20364752).

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

10139904 is an frugal number, since it uses more digits than its factorization.

10139904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 10139904 is about 3184.3215917994. The cubic root of 10139904 is about 216.4435330730.

It can be divided in two parts, 101 and 39904, that multiplied together give a palindrome (4030304).

The spelling of 10139904 in words is "ten million, one hundred thirty-nine thousand, nine hundred four".