7281066 has 64 divisors (see below), whose sum is σ = 17539200. Its totient is φ = 1997568.

The previous prime is 7281031. The next prime is 7281077. The reversal of 7281066 is 6601827.

It is a happy number.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 383205 + ... + 383223.

It is an arithmetic number, because the mean of its divisors is an integer number (274050).

Almost surely, 2^7281066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7281066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8769600).

7281066 is an abundant number, since it is smaller than the sum of its proper divisors (10258134).

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

7281066 is a wasteful number, since it uses less digits than its factorization.

7281066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 7281066 is about 2698.3450483583. The cubic root of 7281066 is about 193.8198810014.

The spelling of 7281066 in words is "seven million, two hundred eighty-one thousand, sixty-six".