7445662220 has 24 divisors (see below), whose sum is σ = 15668553600. Its totient is φ = 2972043392.

The previous prime is 7445662207. The next prime is 7445662271. The reversal of 7445662220 is 222665447.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379025 + ... + 398184.

It is an arithmetic number, because the mean of its divisors is an integer number (652856400).

Almost surely, 2^7445662220 is an apocalyptic number.

It is an amenable number.

7445662220 is an abundant number, since it is smaller than the sum of its proper divisors (8222891380).

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

7445662220 is a wasteful number, since it uses less digits than its factorization.

7445662220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777697 (or 777695 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 38.

The square root of 7445662220 is about 86288.2507645160. The cubic root of 7445662220 is about 1952.6951310624.

The spelling of 7445662220 in words is "seven billion, four hundred forty-five million, six hundred sixty-two thousand, two hundred twenty".