1026322645 has 8 divisors (see below), whose sum is σ = 1232469720. Its totient is φ = 820469760.

The previous prime is 1026322607. The next prime is 1026322663. The reversal of 1026322645 is 5462236201.

It can be written as a sum of positive squares in 4 ways, for example, as 122899396 + 903423249 = 11086^2 + 30057^2 .

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

It is not a de Polignac number, because 1026322645 - 2¹³ = 1026314453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65796 + ... + 79885.

It is an arithmetic number, because the mean of its divisors is an integer number (154058715).

Almost surely, 2^1026322645 is an apocalyptic number.

It is an amenable number.

1026322645 is a deficient number, since it is larger than the sum of its proper divisors (206147075).

1026322645 is a wasteful number, since it uses less digits than its factorization.

1026322645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147095.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 1026322645 is about 32036.2707723605. The cubic root of 1026322645 is about 1008.6983346002.

Adding to 1026322645 its reverse (5462236201), we get a palindrome (6488558846).

The spelling of 1026322645 in words is "one billion, twenty-six million, three hundred twenty-two thousand, six hundred forty-five".