1043648 has 28 divisors (see below), whose sum is σ = 2164080. Its totient is φ = 498432.

The previous prime is 1043639. The next prime is 1043657. The reversal of 1043648 is 8463401.

It is an interprime number because it is at equal distance from previous prime (1043639) and next prime (1043657).

It is a super-2 number, since 2×1043648² = 2178402295808, which contains 22 as substring.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1118 + ... + 1826.

2^1043648 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 1043648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1082040).

1043648 is an abundant number, since it is smaller than the sum of its proper divisors (1120432).

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

1043648 is an equidigital number, since it uses as much as digits as its factorization.

1043648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744 (or 734 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 1043648 is about 1021.5909161695. The cubic root of 1043648 is about 101.4342638571.

The spelling of 1043648 in words is "one million, forty-three thousand, six hundred forty-eight".