1307040 has 96 divisors (see below), whose sum is σ = 4717440. Its totient is φ = 297984.

The previous prime is 1306997. The next prime is 1307051. The reversal of 1307040 is 407031.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3166 + ... + 3554.

It is an arithmetic number, because the mean of its divisors is an integer number (49140).

2^1307040 is an apocalyptic number.

1307040 is a gapful number since it is divisible by the number (10) 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 1307040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2358720).

1307040 is an abundant number, since it is smaller than the sum of its proper divisors (3410400).

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

1307040 is a wasteful number, since it uses less digits than its factorization.

1307040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 1307040 is about 1143.2585009524. The cubic root of 1307040 is about 109.3359441508.

Subtracting from 1307040 its reverse (407031), we obtain a palindrome (900009).

The spelling of 1307040 in words is "one million, three hundred seven thousand, forty".