123828730 has 32 divisors (see below), whose sum is σ = 227272320. Its totient is φ = 48565440.

The previous prime is 123828721. The next prime is 123828737. The reversal of 123828730 is 37828321.

123828730 = T₁₈₈₉ + T₁₈₉₀ + ... + T₁₉₅₅.

It is a super-3 number, since 3×123828730³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (123828737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281851 + ... + 282289.

It is an arithmetic number, because the mean of its divisors is an integer number (7102260).

Almost surely, 2^123828730 is an apocalyptic number.

123828730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123828730 is a deficient number, since it is larger than the sum of its proper divisors (103443590).

123828730 is a wasteful number, since it uses less digits than its factorization.

123828730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 123828730 is about 11127.8358183431. The cubic root of 123828730 is about 498.4334033429.

It can be divided in two parts, 12382 and 8730, that added together give a palindrome (21112).

The spelling of 123828730 in words is "one hundred twenty-three million, eight hundred twenty-eight thousand, seven hundred thirty".