105128304 has 20 divisors (see below), whose sum is σ = 271581576. Its totient is φ = 35042752.

The previous prime is 105128281. The next prime is 105128321. The reversal of 105128304 is 403821501.

It is a super-2 number, since 2×105128304² = 22103920603832832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1095039 + ... + 1095134.

Almost surely, 2^105128304 is an apocalyptic number.

It is an amenable number.

105128304 is an abundant number, since it is smaller than the sum of its proper divisors (166453272).

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

105128304 is a wasteful number, since it uses less digits than its factorization.

105128304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190184 (or 2190178 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 105128304 is about 10253.2094487531. The cubic root of 105128304 is about 471.9614782313.

Adding to 105128304 its reverse (403821501), we get a palindrome (508949805).

The spelling of 105128304 in words is "one hundred five million, one hundred twenty-eight thousand, three hundred four".