1053988 has 12 divisors (see below), whose sum is σ = 1986460. Its totient is φ = 486432.

The previous prime is 1053971. The next prime is 1053989. The reversal of 1053988 is 8893501.

It can be written as a sum of positive squares in 2 ways, for example, as 473344 + 580644 = 688^2 + 762^2 .

It is a super-2 number, since 2×1053988² = 2221781408288, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1053989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10083 + ... + 10186.

2^1053988 is an apocalyptic number.

It is an amenable number.

1053988 is a deficient number, since it is larger than the sum of its proper divisors (932472).

1053988 is a wasteful number, since it uses less digits than its factorization.

1053988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20286 (or 20284 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 1053988 is about 1026.6391771212. The cubic root of 1053988 is about 101.7681521181.

The spelling of 1053988 in words is "one million, fifty-three thousand, nine hundred eighty-eight".