1022544243 has 28 divisors (see below), whose sum is σ = 1752140208. Its totient is φ = 584308080.

The previous prime is 1022544233. The next prime is 1022544287. The reversal of 1022544243 is 3424452201.

1022544243 is a `hidden beast` number, since 10 + 225 + 4 + 424 + 3 = 666.

It is not a de Polignac number, because 1022544243 - 2⁸ = 1022543987 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1022544233) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 95088 + ... + 105293.

It is an arithmetic number, because the mean of its divisors is an integer number (62576436).

Almost surely, 2^1022544243 is an apocalyptic number.

1022544243 is a deficient number, since it is larger than the sum of its proper divisors (729595965).

1022544243 is an frugal number, since it uses more digits than its factorization.

1022544243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200406 (or 200391 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 1022544243 is about 31977.2457069085. The cubic root of 1022544243 is about 1007.4589730578.

Adding to 1022544243 its reverse (3424452201), we get a palindrome (4446996444).

The spelling of 1022544243 in words is "one billion, twenty-two million, five hundred forty-four thousand, two hundred forty-three".