1055988 has 18 divisors (see below), whose sum is σ = 2669394. Its totient is φ = 351984.

The previous prime is 1055981. The next prime is 1056007. The reversal of 1055988 is 8895501.

It can be written as a sum of positive squares in only one way, i.e., 1004004 + 51984 = 1002^2 + 228^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1055988² = 2230221312288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 29333 = 1055988 / (1 + 0 + 5 + 5 + 9 + 8 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055981) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14631 + ... + 14702.

2^1055988 is an apocalyptic number.

1055988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1055988 is an abundant number, since it is smaller than the sum of its proper divisors (1613406).

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

1055988 is a wasteful number, since it uses less digits than its factorization.

1055988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29343 (or 29338 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The square root of 1055988 is about 1027.6127675345. The cubic root of 1055988 is about 101.8324816612.

The spelling of 1055988 in words is "one million, fifty-five thousand, nine hundred eighty-eight".