123828930 has 24 divisors (see below), whose sum is σ = 321955452. Its totient is φ = 33021024.

The previous prime is 123828923. The next prime is 123828961. The reversal of 123828930 is 39828321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 121815369 + 2013561 = 11037^2 + 1419^2 .

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, 687849 + ... + 688028.

Almost surely, 2^123828930 is an apocalyptic number.

123828930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123828930 is an abundant number, since it is smaller than the sum of its proper divisors (198126522).

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

123828930 is a wasteful number, since it uses less digits than its factorization.

123828930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375890 (or 1375887 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 123828930 is about 11127.8448048128. The cubic root of 123828930 is about 498.4336716883.

It can be divided in two parts, 12382 and 8930, that added together give a palindrome (21312).

The spelling of 123828930 in words is "one hundred twenty-three million, eight hundred twenty-eight thousand, nine hundred thirty".