7224004 has 6 divisors (see below), whose sum is σ = 12642014. Its totient is φ = 3612000.

The previous prime is 7223999. The next prime is 7224029. The reversal of 7224004 is 4004227.

It can be written as a sum of positive squares in only one way, i.e., 4401604 + 2822400 = 2098^2 + 1680^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 902997 + ... + 903004.

Almost surely, 2^7224004 is an apocalyptic number.

It is an amenable number.

7224004 is a deficient number, since it is larger than the sum of its proper divisors (5418010).

7224004 is a wasteful number, since it uses less digits than its factorization.

7224004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806005 (or 1806003 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 7224004 is about 2687.7507324899. The cubic root of 7224004 is about 193.3122278454.

The spelling of 7224004 in words is "seven million, two hundred twenty-four thousand, four".