7240784 has 10 divisors (see below), whose sum is σ = 14029050. Its totient is φ = 3620384.

The previous prime is 7240769. The next prime is 7240787. The reversal of 7240784 is 4870427.

It can be written as a sum of positive squares in only one way, i.e., 5895184 + 1345600 = 2428^2 + 1160^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7240784.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7240787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226259 + ... + 226290.

It is an arithmetic number, because the mean of its divisors is an integer number (1402905).

Almost surely, 2^7240784 is an apocalyptic number.

It is an amenable number.

7240784 is a deficient number, since it is larger than the sum of its proper divisors (6788266).

7240784 is a wasteful number, since it uses less digits than its factorization.

7240784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452557 (or 452551 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 7240784 is about 2690.8704911236. The cubic root of 7240784 is about 193.4617880642.

The spelling of 7240784 in words is "seven million, two hundred forty thousand, seven hundred eighty-four".