7221048 has 16 divisors (see below), whose sum is σ = 18052680. Its totient is φ = 2407008.

The previous prime is 7221041. The next prime is 7221077. The reversal of 7221048 is 8401227.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 300877 = 7221048 / (7 + 2 + 2 + 1 + 0 + 4 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7221041) 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, 150415 + ... + 150462.

Almost surely, 2^7221048 is an apocalyptic number.

It is an amenable number.

7221048 is an abundant number, since it is smaller than the sum of its proper divisors (10831632).

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

7221048 is a wasteful number, since it uses less digits than its factorization.

7221048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300886 (or 300882 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 7221048 is about 2687.2007740398. The cubic root of 7221048 is about 193.2858570172.

It can be divided in two parts, 722 and 1048, that added together give a triangular number (1770 = T₅₉).

The spelling of 7221048 in words is "seven million, two hundred twenty-one thousand, forty-eight".