123534396 has 72 divisors (see below), whose sum is σ = 328457584. Its totient is φ = 40590720.

The previous prime is 123534347. The next prime is 123534401. The reversal of 123534396 is 693435321.

It is a happy number.

123534396 is a `hidden beast` number, since 1 + 235 + 34 + 396 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 123534396.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 70086 + ... + 71826.

Almost surely, 2^123534396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123534396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164228792).

123534396 is an abundant number, since it is smaller than the sum of its proper divisors (204923188).

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

123534396 is a wasteful number, since it uses less digits than its factorization.

123534396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833 (or 1819 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 123534396 is about 11114.6028269120. The cubic root of 123534396 is about 498.0381738773.

The spelling of 123534396 in words is "one hundred twenty-three million, five hundred thirty-four thousand, three hundred ninety-six".