1056543426 has 80 divisors (see below), whose sum is σ = 2469189888. Its totient is φ = 337284000.

The previous prime is 1056543419. The next prime is 1056543451. The reversal of 1056543426 is 6243456501.

1056543426 is a `hidden beast` number, since 10 + 565 + 43 + 42 + 6 = 666.

It is a super-2 number, since 2×1056543426² = 2232568022047634952, which contains 22 as substring.

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 39 ways as a sum of consecutive naturals, for example, 506181 + ... + 508263.

Almost surely, 2^1056543426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1056543426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1234594944).

1056543426 is an abundant number, since it is smaller than the sum of its proper divisors (1412646462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1056543426 is a wasteful number, since it uses less digits than its factorization.

1056543426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2229 (or 2220 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 1056543426 is about 32504.5139326833. The cubic root of 1056543426 is about 1018.5033239885.

Adding to 1056543426 its reverse (6243456501), we get a palindrome (7299999927).

The spelling of 1056543426 in words is "one billion, fifty-six million, five hundred forty-three thousand, four hundred twenty-six".