1033840 has 20 divisors (see below), whose sum is σ = 2403864. Its totient is φ = 413504.

The previous prime is 1033829. The next prime is 1033841. The reversal of 1033840 is 483301.

It is a tau number, because it is divible by the number of its divisors (20).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1033841) by changing a digit.

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, 6382 + ... + 6541.

2^1033840 is an apocalyptic number.

1033840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1033840 is an abundant number, since it is smaller than the sum of its proper divisors (1370024).

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

1033840 is a wasteful number, since it uses less digits than its factorization.

1033840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12936 (or 12930 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1033840 is about 1016.7792287414. The cubic root of 1033840 is about 101.1155101021.

The spelling of 1033840 in words is "one million, thirty-three thousand, eight hundred forty".