7115220 has 72 divisors (see below), whose sum is σ = 24670464. Its totient is φ = 1626048.

The previous prime is 7115219. The next prime is 7115221. The reversal of 7115220 is 225117.

It is an interprime number because it is at equal distance from previous prime (7115219) and next prime (7115221).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 7115193 and 7115202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7115221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1564 + ... + 4083.

Almost surely, 2^7115220 is an apocalyptic number.

7115220 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7115220 is an abundant number, since it is smaller than the sum of its proper divisors (17555244).

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

7115220 is a wasteful number, since it uses less digits than its factorization.

7115220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5669 (or 5664 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 7115220 is about 2667.4369720764. The cubic root of 7115220 is about 192.3369733465.

The spelling of 7115220 in words is "seven million, one hundred fifteen thousand, two hundred twenty".