1022040013 has 4 divisors (see below), whose sum is σ = 1028549980. Its totient is φ = 1015530048.

The previous prime is 1022039999. The next prime is 1022040037. The reversal of 1022040013 is 3100402201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 662444644 + 359595369 = 25738^2 + 18963^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022040013 - 2⁵ = 1022039981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022039975 and 1022040002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022040073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3254748 + ... + 3255061.

It is an arithmetic number, because the mean of its divisors is an integer number (257137495).

Almost surely, 2^1022040013 is an apocalyptic number.

It is an amenable number.

1022040013 is a deficient number, since it is larger than the sum of its proper divisors (6509967).

1022040013 is an equidigital number, since it uses as much as digits as its factorization.

1022040013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6509966.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1022040013 is about 31969.3605347370. The cubic root of 1022040013 is about 1007.2933487459.

Adding to 1022040013 its reverse (3100402201), we get a palindrome (4122442214).

The spelling of 1022040013 in words is "one billion, twenty-two million, forty thousand, thirteen".