104139288 has 48 divisors (see below), whose sum is σ = 307686600. Its totient is φ = 31557120.

The previous prime is 104139281. The next prime is 104139289. The reversal of 104139288 is 882931401.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104139281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64953 + ... + 66536.

Almost surely, 2^104139288 is an apocalyptic number.

104139288 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

104139288 is an abundant number, since it is smaller than the sum of its proper divisors (203547312).

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

104139288 is a wasteful number, since it uses less digits than its factorization.

104139288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131512 (or 131505 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 104139288 is about 10204.8658981880. The cubic root of 104139288 is about 470.4767879296.

It can be divided in two parts, 10413 and 9288, that added together give a triangular number (19701 = T₁₉₈).

The spelling of 104139288 in words is "one hundred four million, one hundred thirty-nine thousand, two hundred eighty-eight".