1026432009 has 12 divisors (see below), whose sum is σ = 1491196356. Its totient is φ = 680331552.

The previous prime is 1026431983. The next prime is 1026432031. The reversal of 1026432009 is 9002346201.

1026432009 is a `hidden beast` number, since 10 + 2 + 643 + 2 + 0 + 0 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 631416384 + 395015625 = 25128^2 + 19875^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1026432009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1026432509) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 328062 + ... + 331175.

It is an arithmetic number, because the mean of its divisors is an integer number (124266363).

Almost surely, 2^1026432009 is an apocalyptic number.

It is an amenable number.

1026432009 is a deficient number, since it is larger than the sum of its proper divisors (464764347).

1026432009 is a wasteful number, since it uses less digits than its factorization.

1026432009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659416 (or 659413 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1026432009 is about 32037.9776047116. The cubic root of 1026432009 is about 1008.7341619842.

The spelling of 1026432009 in words is "one billion, twenty-six million, four hundred thirty-two thousand, nine".