11028978 has 24 divisors (see below), whose sum is σ = 24024000. Its totient is φ = 3656664.

The previous prime is 11028917. The next prime is 11028989. The reversal of 11028978 is 87982011.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2043 + ... + 5121.

It is an arithmetic number, because the mean of its divisors is an integer number (1001000).

Almost surely, 2^11028978 is an apocalyptic number.

11028978 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11028978 is an abundant number, since it is smaller than the sum of its proper divisors (12995022).

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

11028978 is a wasteful number, since it uses less digits than its factorization.

11028978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3286 (or 3283 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 11028978 is about 3320.9905148916. The cubic root of 11028978 is about 222.5931302264.

The spelling of 11028978 in words is "eleven million, twenty-eight thousand, nine hundred seventy-eight".