1026219918 has 16 divisors (see below), whose sum is σ = 2066216400. Its totient is φ = 339777216.

The previous prime is 1026219899. The next prime is 1026219923. The reversal of 1026219918 is 8199126201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 573055 + ... + 574842.

It is an arithmetic number, because the mean of its divisors is an integer number (129138525).

Almost surely, 2^1026219918 is an apocalyptic number.

1026219918 is an abundant number, since it is smaller than the sum of its proper divisors (1039996482).

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

1026219918 is a wasteful number, since it uses less digits than its factorization.

1026219918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148051.

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 1026219918 is about 32034.6674401343. The cubic root of 1026219918 is about 1008.6646791633.

The spelling of 1026219918 in words is "one billion, twenty-six million, two hundred nineteen thousand, nine hundred eighteen".