128210296 has 16 divisors (see below), whose sum is σ = 248149440. Its totient is φ = 62037120.

The previous prime is 128210287. The next prime is 128210297. The reversal of 128210296 is 692012821.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128210297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258241 + ... + 258736.

It is an arithmetic number, because the mean of its divisors is an integer number (15509340).

Almost surely, 2^128210296 is an apocalyptic number.

It is an amenable number.

128210296 is a deficient number, since it is larger than the sum of its proper divisors (119939144).

128210296 is a wasteful number, since it uses less digits than its factorization.

128210296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517014 (or 517010 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 128210296 is about 11322.9985427889. The cubic root of 128210296 is about 504.2442651529.

The spelling of 128210296 in words is "one hundred twenty-eight million, two hundred ten thousand, two hundred ninety-six".