7404340 has 12 divisors (see below), whose sum is σ = 15549156. Its totient is φ = 2961728.

The previous prime is 7404337. The next prime is 7404343. The reversal of 7404340 is 434047.

It is an interprime number because it is at equal distance from previous prime (7404337) and next prime (7404343).

It can be written as a sum of positive squares in 2 ways, for example, as 1313316 + 6091024 = 1146^2 + 2468^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7404343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185089 + ... + 185128.

It is an arithmetic number, because the mean of its divisors is an integer number (1295763).

Almost surely, 2^7404340 is an apocalyptic number.

It is an amenable number.

7404340 is an abundant number, since it is smaller than the sum of its proper divisors (8144816).

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

7404340 is a wasteful number, since it uses less digits than its factorization.

7404340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370226 (or 370224 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 7404340 is about 2721.0916926851. The cubic root of 7404340 is about 194.9076047049.

Adding to 7404340 its reverse (434047), we get a palindrome (7838387).

It can be divided in two parts, 7404 and 340, that added together give a square (7744 = 88²).

The spelling of 7404340 in words is "seven million, four hundred four thousand, three hundred forty".