7220940885 has 64 divisors (see below), whose sum is σ = 13095936000. Its totient is φ = 3774288960.

The previous prime is 7220940877. The next prime is 7220940901. The reversal of 7220940885 is 5880490227.

It is not a de Polignac number, because 7220940885 - 2³ = 7220940877 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 7220940885.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1480000 + ... + 1484870.

It is an arithmetic number, because the mean of its divisors is an integer number (204624000).

Almost surely, 2^7220940885 is an apocalyptic number.

It is an amenable number.

7220940885 is a deficient number, since it is larger than the sum of its proper divisors (5874995115).

7220940885 is a wasteful number, since it uses less digits than its factorization.

7220940885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5103 (or 5097 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 7220940885 is about 84976.1194983626. The cubic root of 7220940885 is about 1932.8490129641.

The spelling of 7220940885 in words is "seven billion, two hundred twenty million, nine hundred forty thousand, eight hundred eighty-five".