1022556434 has 4 divisors (see below), whose sum is σ = 1533834654. Its totient is φ = 511278216.

The previous prime is 1022556427. The next prime is 1022556439. The reversal of 1022556434 is 4346552201.

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

It can be written as a sum of positive squares in only one way, i.e., 652955809 + 369600625 = 25553^2 + 19225^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1022556434.

It is not an unprimeable number, because it can be changed into a prime (1022556439) 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 as a sum of consecutive naturals, namely, 255639107 + ... + 255639110.

Almost surely, 2^1022556434 is an apocalyptic number.

1022556434 is a deficient number, since it is larger than the sum of its proper divisors (511278220).

1022556434 is an equidigital number, since it uses as much as digits as its factorization.

1022556434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511278219.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 1022556434 is about 31977.4363262598. The cubic root of 1022556434 is about 1007.4629767585.

The spelling of 1022556434 in words is "one billion, twenty-two million, five hundred fifty-six thousand, four hundred thirty-four".