123428034 has 24 divisors (see below), whose sum is σ = 268424832. Its totient is φ = 40989240.

The previous prime is 123428029. The next prime is 123428057. The reversal of 123428034 is 430824321.

It is a junction number, because it is equal to n+sod(n) for n = 123427989 and 123428007.

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, 7774 + ... + 17529.

It is an arithmetic number, because the mean of its divisors is an integer number (11184368).

Almost surely, 2^123428034 is an apocalyptic number.

123428034 is an abundant number, since it is smaller than the sum of its proper divisors (144996798).

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

123428034 is a wasteful number, since it uses less digits than its factorization.

123428034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25582 (or 25579 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 123428034 is about 11109.8170101942. The cubic root of 123428034 is about 497.8951973781.

The spelling of 123428034 in words is "one hundred twenty-three million, four hundred twenty-eight thousand, thirty-four".