10128778 has 16 divisors (see below), whose sum is σ = 16689600. Its totient is φ = 4572000.

The previous prime is 10128773. The next prime is 10128793. The reversal of 10128778 is 87782101.

It is not an unprimeable number, because it can be changed into a prime (10128773) 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, 1798 + ... + 4846.

It is an arithmetic number, because the mean of its divisors is an integer number (1043100).

Almost surely, 2^10128778 is an apocalyptic number.

10128778 is a deficient number, since it is larger than the sum of its proper divisors (6560822).

10128778 is a wasteful number, since it uses less digits than its factorization.

10128778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3213.

The product of its (nonzero) digits is 6272, while the sum is 34.

The square root of 10128778 is about 3182.5741153978. The cubic root of 10128778 is about 216.3643399476.

The spelling of 10128778 in words is "ten million, one hundred twenty-eight thousand, seven hundred seventy-eight".