1013440 has 28 divisors (see below), whose sum is σ = 2414016. Its totient is φ = 405248.

The previous prime is 1013431. The next prime is 1013471. The reversal of 1013440 is 443101.

1013440 = T₁₄₅ + T₁₄₆ + ... + T₂₀₈.

It is a self number, because there is not a number n which added to its sum of digits gives 1013440.

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, 1264 + ... + 1903.

2^1013440 is an apocalyptic number.

1013440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1013440 is an abundant number, since it is smaller than the sum of its proper divisors (1400576).

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

1013440 is an equidigital number, since it uses as much as digits as its factorization.

1013440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3184 (or 3174 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1013440 is about 1006.6975712695. The cubic root of 1013440 is about 100.4460078129.

Adding to 1013440 its reverse (443101), we get a palindrome (1456541).

The spelling of 1013440 in words is "one million, thirteen thousand, four hundred forty".