7045220 has 96 divisors (see below), whose sum is σ = 18816000. Its totient is φ = 2201472.

The previous prime is 7045193. The next prime is 7045223. The reversal of 7045220 is 225407.

It is a super-3 number, since 3×7045220³ (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 7045192 and 7045201.

It is not an unprimeable number, because it can be changed into a prime (7045223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89141 + ... + 89219.

It is an arithmetic number, because the mean of its divisors is an integer number (196000).

Almost surely, 2^7045220 is an apocalyptic number.

7045220 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7045220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9408000).

7045220 is an abundant number, since it is smaller than the sum of its proper divisors (11770780).

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

7045220 is a wasteful number, since it uses less digits than its factorization.

7045220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 7045220 is about 2654.2833307693. The cubic root of 7045220 is about 191.7041522985.

The spelling of 7045220 in words is "seven million, forty-five thousand, two hundred twenty".