7205240 has 32 divisors (see below), whose sum is σ = 18528480. Its totient is φ = 2470272.

The previous prime is 7205213. The next prime is 7205243. The reversal of 7205240 is 425027.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7205243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12587 + ... + 13146.

It is an arithmetic number, because the mean of its divisors is an integer number (579015).

Almost surely, 2^7205240 is an apocalyptic number.

7205240 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7205240 is an abundant number, since it is smaller than the sum of its proper divisors (11323240).

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

7205240 is a wasteful number, since it uses less digits than its factorization.

7205240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25751 (or 25747 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 7205240 is about 2684.2578117610. The cubic root of 7205240 is about 193.1447096763.

The spelling of 7205240 in words is "seven million, two hundred five thousand, two hundred forty".