7915040 has 96 divisors (see below), whose sum is σ = 22063104. Its totient is φ = 2626560.

The previous prime is 7914997. The next prime is 7915049. The reversal of 7915040 is 405197.

It is not an unprimeable number, because it can be changed into a prime (7915049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41345 + ... + 41535.

It is an arithmetic number, because the mean of its divisors is an integer number (229824).

Almost surely, 2^7915040 is an apocalyptic number.

7915040 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 7915040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11031552).

7915040 is an abundant number, since it is smaller than the sum of its proper divisors (14148064).

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

7915040 is a wasteful number, since it uses less digits than its factorization.

7915040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 7915040 is about 2813.3680882529. The cubic root of 7915040 is about 199.2894787872.

The spelling of 7915040 in words is "seven million, nine hundred fifteen thousand, forty".