1026431445 has 32 divisors (see below), whose sum is σ = 1797634944. Its totient is φ = 497030400.

The previous prime is 1026431407. The next prime is 1026431489. The reversal of 1026431445 is 5441346201.

It is not a de Polignac number, because 1026431445 - 2¹⁸ = 1026169301 is a prime.

It is a super-2 number, since 2×1026431445² = 2107123022569576050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 31251 + ... + 55040.

It is an arithmetic number, because the mean of its divisors is an integer number (56176092).

Almost surely, 2^1026431445 is an apocalyptic number.

1026431445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1026431445 is a deficient number, since it is larger than the sum of its proper divisors (771203499).

1026431445 is a wasteful number, since it uses less digits than its factorization.

1026431445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86373.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1026431445 is about 32037.9688026566. The cubic root of 1026431445 is about 1008.7339772257.

Adding to 1026431445 its reverse (5441346201), we get a palindrome (6467777646).

The spelling of 1026431445 in words is "one billion, twenty-six million, four hundred thirty-one thousand, four hundred forty-five".