1026617642 has 8 divisors (see below), whose sum is σ = 1540752516. Its totient is φ = 513033472.

The previous prime is 1026617609. The next prime is 1026617653. The reversal of 1026617642 is 2467166201.

1026617642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1021505521 + 5112121 = 31961^2 + 2261^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132983 + ... + 140490.

Almost surely, 2^1026617642 is an apocalyptic number.

1026617642 is a deficient number, since it is larger than the sum of its proper divisors (514134874).

1026617642 is a wasteful number, since it uses less digits than its factorization.

1026617642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275352.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 1026617642 is about 32040.8745511105. The cubic root of 1026617642 is about 1008.7949690842.

The spelling of 1026617642 in words is "one billion, twenty-six million, six hundred seventeen thousand, six hundred forty-two".