7013440 has 112 divisors (see below), whose sum is σ = 19897344. Its totient is φ = 2304000.

The previous prime is 7013431. The next prime is 7013443. The reversal of 7013440 is 443107.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7013443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69390 + ... + 69490.

Almost surely, 2^7013440 is an apocalyptic number.

7013440 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7013440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9948672).

7013440 is an abundant number, since it is smaller than the sum of its proper divisors (12883904).

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

7013440 is a wasteful number, since it uses less digits than its factorization.

7013440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 7013440 is about 2648.2900143300. The cubic root of 7013440 is about 191.4154676027.

Adding to 7013440 its reverse (443107), we get a palindrome (7456547).

The spelling of 7013440 in words is "seven million, thirteen thousand, four hundred forty".