1022040243 has 48 divisors (see below), whose sum is σ = 1770163200. Its totient is φ = 555871680.

The previous prime is 1022040197. The next prime is 1022040269. The reversal of 1022040243 is 3420402201.

1022040243 is a `hidden beast` number, since 1 + 0 + 220 + 402 + 43 = 666.

It is not a de Polignac number, because 1022040243 - 2⁸ = 1022039987 is a prime.

It is a super-2 number, since 2×1022040243² = 2089132516622998098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1022045243) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 125778 + ... + 133656.

It is an arithmetic number, because the mean of its divisors is an integer number (36878400).

Almost surely, 2^1022040243 is an apocalyptic number.

1022040243 is a deficient number, since it is larger than the sum of its proper divisors (748122957).

1022040243 is a wasteful number, since it uses less digits than its factorization.

1022040243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7992 (or 7989 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1022040243 is about 31969.3641319311. The cubic root of 1022040243 is about 1007.2934243063.

Adding to 1022040243 its reverse (3420402201), we get a palindrome (4442442444).

The spelling of 1022040243 in words is "one billion, twenty-two million, forty thousand, two hundred forty-three".