123789472 has 24 divisors (see below), whose sum is σ = 243989172. Its totient is φ = 61824000.

The previous prime is 123789443. The next prime is 123789509. The reversal of 123789472 is 274987321.

It can be written as a sum of positive squares in 2 ways, for example, as 117418896 + 6370576 = 10836^2 + 2524^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36822 + ... + 40042.

Almost surely, 2^123789472 is an apocalyptic number.

It is an amenable number.

123789472 is a deficient number, since it is larger than the sum of its proper divisors (120199700).

123789472 is a wasteful number, since it uses less digits than its factorization.

123789472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4432 (or 4424 counting only the distinct ones).

The product of its digits is 169344, while the sum is 43.

The square root of 123789472 is about 11126.0717236588. The cubic root of 123789472 is about 498.3807242197.

It can be divided in two parts, 1237 and 89472, that added together give a palindrome (90709).

The spelling of 123789472 in words is "one hundred twenty-three million, seven hundred eighty-nine thousand, four hundred seventy-two".