123694272 has 84 divisors (see below), whose sum is σ = 381843280. Its totient is φ = 38057472.

The previous prime is 123694243. The next prime is 123694289. The reversal of 123694272 is 272496321.

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

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, 772 + ... + 15747.

Almost surely, 2^123694272 is an apocalyptic number.

123694272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123694272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190921640).

123694272 is an abundant number, since it is smaller than the sum of its proper divisors (258149008).

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

123694272 is a wasteful number, since it uses less digits than its factorization.

123694272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16550 (or 16537 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 123694272 is about 11121.7926612574. The cubic root of 123694272 is about 498.2529319498.

It can be divided in two parts, 12369 and 4272, that added together give a square (16641 = 129²).

The spelling of 123694272 in words is "one hundred twenty-three million, six hundred ninety-four thousand, two hundred seventy-two".