128274844 has 24 divisors (see below), whose sum is σ = 230162688. Its totient is φ = 62525040.

The previous prime is 128274827. The next prime is 128274851. The reversal of 128274844 is 448472821.

It is a junction number, because it is equal to n+sod(n) for n = 128274797 and 128274806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51999 + ... + 54409.

It is an arithmetic number, because the mean of its divisors is an integer number (9590112).

Almost surely, 2^128274844 is an apocalyptic number.

It is an amenable number.

128274844 is a deficient number, since it is larger than the sum of its proper divisors (101887844).

128274844 is a wasteful number, since it uses less digits than its factorization.

128274844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2745 (or 2743 counting only the distinct ones).

The product of its digits is 114688, while the sum is 40.

The square root of 128274844 is about 11325.8484891861. The cubic root of 128274844 is about 504.3288722379.

It can be divided in two parts, 12827 and 4844, that added together give a palindrome (17671).

The spelling of 128274844 in words is "one hundred twenty-eight million, two hundred seventy-four thousand, eight hundred forty-four".