7227420312 has 64 divisors (see below), whose sum is σ = 20740849920. Its totient is φ = 2055869568.

The previous prime is 7227420311. The next prime is 7227420323. The reversal of 7227420312 is 2130247227.

It is a self number, because there is not a number n which added to its sum of digits gives 7227420312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7227420311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56623 + ... + 132894.

It is an arithmetic number, because the mean of its divisors is an integer number (324075780).

Almost surely, 2^7227420312 is an apocalyptic number.

It is an amenable number.

7227420312 is an abundant number, since it is smaller than the sum of its proper divisors (13513429608).

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

7227420312 is a wasteful number, since it uses less digits than its factorization.

7227420312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189760 (or 189756 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 7227420312 is about 85014.2359372829. The cubic root of 7227420312 is about 1933.4269621191.

Adding to 7227420312 its reverse (2130247227), we get a palindrome (9357667539).

The spelling of 7227420312 in words is "seven billion, two hundred twenty-seven million, four hundred twenty thousand, three hundred twelve".