12451928 has 8 divisors (see below), whose sum is σ = 23347380. Its totient is φ = 6225960.

The previous prime is 12451921. The next prime is 12451931. The reversal of 12451928 is 82915421.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×12451928³ (a number of 22 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12451894 and 12451903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12451921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 778238 + ... + 778253.

Almost surely, 2^12451928 is an apocalyptic number.

It is an amenable number.

12451928 is a deficient number, since it is larger than the sum of its proper divisors (10895452).

12451928 is a wasteful number, since it uses less digits than its factorization.

12451928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556497 (or 1556493 counting only the distinct ones).

The product of its digits is 5760, while the sum is 32.

The square root of 12451928 is about 3528.7289496361. The cubic root of 12451928 is about 231.7815522053.

The spelling of 12451928 in words is "twelve million, four hundred fifty-one thousand, nine hundred twenty-eight".