1043988 has 36 divisors (see below), whose sum is σ = 2681280. Its totient is φ = 315920.

The previous prime is 1043981. The next prime is 1044019. The reversal of 1043988 is 8893401.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1093 + ... + 1811.

It is an arithmetic number, because the mean of its divisors is an integer number (74480).

2^1043988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1043988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1340640).

1043988 is an abundant number, since it is smaller than the sum of its proper divisors (1637292).

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

1043988 is a wasteful number, since it uses less digits than its factorization.

1043988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748 (or 735 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 1043988 is about 1021.7573097365. The cubic root of 1043988 is about 101.4452777575.

The spelling of 1043988 in words is "one million, forty-three thousand, nine hundred eighty-eight".