12900048 has 40 divisors (see below), whose sum is σ = 38086848. Its totient is φ = 3685632.

The previous prime is 12900047. The next prime is 12900053. The reversal of 12900048 is 84000921.

It is a super-2 number, since 2×12900048² = 332822476804608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12900047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18861 + ... + 19532.

Almost surely, 2^12900048 is an apocalyptic number.

It is an amenable number.

12900048 is an abundant number, since it is smaller than the sum of its proper divisors (25186800).

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

12900048 is a wasteful number, since it uses less digits than its factorization.

12900048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38411 (or 38405 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 12900048 is about 3591.6636813599. The cubic root of 12900048 is about 234.5293007760.

Adding to 12900048 its reverse (84000921), we get a palindrome (96900969).

The spelling of 12900048 in words is "twelve million, nine hundred thousand, forty-eight".