1078491228 has 36 divisors (see below), whose sum is σ = 2554727112. Its totient is φ = 354113760.

The previous prime is 1078491221. The next prime is 1078491251. The reversal of 1078491228 is 8221948701.

It is a self number, because there is not a number n which added to its sum of digits gives 1078491228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078491221) 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 11 ways as a sum of consecutive naturals, for example, 43858 + ... + 63878.

It is an arithmetic number, because the mean of its divisors is an integer number (70964642).

Almost surely, 2^1078491228 is an apocalyptic number.

It is an amenable number.

1078491228 is an abundant number, since it is smaller than the sum of its proper divisors (1476235884).

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

1078491228 is a wasteful number, since it uses less digits than its factorization.

1078491228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20162 (or 20093 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 1078491228 is about 32840.3901925662. The cubic root of 1078491228 is about 1025.5075742699.

The spelling of 1078491228 in words is "one billion, seventy-eight million, four hundred ninety-one thousand, two hundred twenty-eight".