1026909642 has 16 divisors (see below), whose sum is σ = 2240530272. Its totient is φ = 311184720.

The previous prime is 1026909641. The next prime is 1026909643. The reversal of 1026909642 is 2469096201.

It is an interprime number because it is at equal distance from previous prime (1026909641) and next prime (1026909643).

It is a self number, because there is not a number n which added to its sum of digits gives 1026909642.

It is not an unprimeable number, because it can be changed into a prime (1026909641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7779553 + ... + 7779684.

It is an arithmetic number, because the mean of its divisors is an integer number (140033142).

Almost surely, 2^1026909642 is an apocalyptic number.

1026909642 is an abundant number, since it is smaller than the sum of its proper divisors (1213620630).

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

1026909642 is a wasteful number, since it uses less digits than its factorization.

1026909642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15559253.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 1026909642 is about 32045.4309067611. The cubic root of 1026909642 is about 1008.8906035883.

The spelling of 1026909642 in words is "one billion, twenty-six million, nine hundred nine thousand, six hundred forty-two".