1026632645 has 8 divisors (see below), whose sum is σ = 1232812320. Its totient is φ = 820737360.

The previous prime is 1026632639. The next prime is 1026632647. The reversal of 1026632645 is 5462366201.

It is a happy number.

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

It is not a de Polignac number, because 1026632645 - 2⁸ = 1026632389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1026632647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63071 + ... + 77660.

It is an arithmetic number, because the mean of its divisors is an integer number (154101540).

Almost surely, 2^1026632645 is an apocalyptic number.

It is an amenable number.

1026632645 is a deficient number, since it is larger than the sum of its proper divisors (206179675).

1026632645 is a wasteful number, since it uses less digits than its factorization.

1026632645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142195.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 1026632645 is about 32041.1086730781. The cubic root of 1026632645 is about 1008.7998832400.

Adding to 1026632645 its reverse (5462366201), we get a palindrome (6488998846).

The spelling of 1026632645 in words is "one billion, twenty-six million, six hundred thirty-two thousand, six hundred forty-five".