7705242 has 36 divisors (see below), whose sum is σ = 17324190. Its totient is φ = 2474976.

The previous prime is 7705219. The next prime is 7705249. The reversal of 7705242 is 2425077.

It can be written as a sum of positive squares in 3 ways, for example, as 7403841 + 301401 = 2721^2 + 549^2 .

It is not an unprimeable number, because it can be changed into a prime (7705249) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14884 + ... + 15392.

Almost surely, 2^7705242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7705242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8662095).

7705242 is an abundant number, since it is smaller than the sum of its proper divisors (9618948).

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

7705242 is a wasteful number, since it uses less digits than its factorization.

7705242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575 (or 543 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 7705242 is about 2775.8317672366. The cubic root of 7705242 is about 197.5128827787.

The spelling of 7705242 in words is "seven million, seven hundred five thousand, two hundred forty-two".