7240424 has 8 divisors (see below), whose sum is σ = 13575810. Its totient is φ = 3620208.

The previous prime is 7240411. The next prime is 7240439. The reversal of 7240424 is 4240427.

It can be written as a sum of positive squares in only one way, i.e., 4622500 + 2617924 = 2150^2 + 1618^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 7240424.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452519 + ... + 452534.

Almost surely, 2^7240424 is an apocalyptic number.

It is an amenable number.

7240424 is a deficient number, since it is larger than the sum of its proper divisors (6335386).

7240424 is a wasteful number, since it uses less digits than its factorization.

7240424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905059 (or 905055 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 7240424 is about 2690.8035974407. The cubic root of 7240424 is about 193.4585818093.

The spelling of 7240424 in words is "seven million, two hundred forty thousand, four hundred twenty-four".