1033240 has 32 divisors (see below), whose sum is σ = 2504880. Its totient is φ = 381312.

The previous prime is 1033223. The next prime is 1033271. The reversal of 1033240 is 423301.

1033240 = T₂₀₇ + T₂₀₈ + ... + T₂₄₆.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 1033240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474 + ... + 1513.

2^1033240 is an apocalyptic number.

1033240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1033240 is an abundant number, since it is smaller than the sum of its proper divisors (1471640).

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

1033240 is a wasteful number, since it uses less digits than its factorization.

1033240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011 (or 2007 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 1033240 is about 1016.4841366199. The cubic root of 1033240 is about 101.0959451641.

Adding to 1033240 its reverse (423301), we get a palindrome (1456541).

The spelling of 1033240 in words is "one million, thirty-three thousand, two hundred forty".