1045487556 has 81 divisors (see below), whose sum is σ = 2816245159. Its totient is φ = 326961408.

The previous prime is 1045487549. The next prime is 1045487557. The reversal of 1045487556 is 6557845401.

The square root of 1045487556 is 32334.

It is a perfect power (a square), and thus also a powerful number.

1045487556 is a `hidden beast` number, since 10 + 4 + 5 + 4 + 87 + 556 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 64545156 + 980942400 = 8034^2 + 31320^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045487557) 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 26 ways as a sum of consecutive naturals, for example, 3297910 + ... + 3298226.

Almost surely, 2^1045487556 is an apocalyptic number.

1045487556 is the 32334-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1045487556

1045487556 is an abundant number, since it is smaller than the sum of its proper divisors (1770757603).

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

1045487556 is a wasteful number, since it uses less digits than its factorization.

1045487556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The cubic root of 1045487556 is about 1014.9382560094.

It can be divided in two parts, 1045 and 487556, that added together give a square (488601 = 699²).

The spelling of 1045487556 in words is "one billion, forty-five million, four hundred eighty-seven thousand, five hundred fifty-six".