1078998450 has 24 divisors (see below), whose sum is σ = 2675916528. Its totient is φ = 287732880.

The previous prime is 1078998409. The next prime is 1078998469. The reversal of 1078998450 is 548998701.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1078998393 and 1078998402.

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, 3596512 + ... + 3596811.

It is an arithmetic number, because the mean of its divisors is an integer number (111496522).

Almost surely, 2^1078998450 is an apocalyptic number.

1078998450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1078998450 is an abundant number, since it is smaller than the sum of its proper divisors (1596918078).

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

1078998450 is a wasteful number, since it uses less digits than its factorization.

1078998450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7193338 (or 7193333 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 51.

The square root of 1078998450 is about 32848.1118178808. Note that the first 3 decimals coincide. The cubic root of 1078998450 is about 1025.6683168782.

The spelling of 1078998450 in words is "one billion, seventy-eight million, nine hundred ninety-eight thousand, four hundred fifty".