1056388 has 12 divisors (see below), whose sum is σ = 1872640. Its totient is φ = 521352.

The previous prime is 1056379. The next prime is 1056401. The reversal of 1056388 is 8836501.

It is a super-3 number, since 3×1056388³ = 3536646333857409216, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1356 + ... + 1987.

2^1056388 is an apocalyptic number.

It is an amenable number.

1056388 is a deficient number, since it is larger than the sum of its proper divisors (816252).

1056388 is a wasteful number, since it uses less digits than its factorization.

1056388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3426 (or 3424 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 1056388 is about 1027.8073749492. The cubic root of 1056388 is about 101.8453378207.

It can be divided in two parts, 1056 and 388, that added together give a square (1444 = 38²).

The spelling of 1056388 in words is "one million, fifty-six thousand, three hundred eighty-eight".