12651948 has 72 divisors (see below), whose sum is σ = 34398000. Its totient is φ = 3908736.

The previous prime is 12651941. The next prime is 12651953. The reversal of 12651948 is 84915621.

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

It is not an unprimeable number, because it can be changed into a prime (12651941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36078 + ... + 36426.

It is an arithmetic number, because the mean of its divisors is an integer number (477750).

Almost surely, 2^12651948 is an apocalyptic number.

12651948 is a gapful number since it is divisible by the number (18) 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 12651948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17199000).

12651948 is an abundant number, since it is smaller than the sum of its proper divisors (21746052).

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

12651948 is a wasteful number, since it uses less digits than its factorization.

12651948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431 (or 426 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 12651948 is about 3556.9576888122. The cubic root of 12651948 is about 233.0160303829.

The spelling of 12651948 in words is "twelve million, six hundred fifty-one thousand, nine hundred forty-eight".