7827422388 has 24 divisors (see below), whose sum is σ = 18304675200. Its totient is φ = 2603328000.

The previous prime is 7827422341. The next prime is 7827422389. The reversal of 7827422388 is 8832247287.

It is a super-2 number, since 2×7827422388² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7827422388.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7827422389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 720988 + ... + 731763.

It is an arithmetic number, because the mean of its divisors is an integer number (762694800).

Almost surely, 2^7827422388 is an apocalyptic number.

It is an amenable number.

7827422388 is an abundant number, since it is smaller than the sum of its proper divisors (10477252812).

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

7827422388 is a wasteful number, since it uses less digits than its factorization.

7827422388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453207 (or 1453205 counting only the distinct ones).

The product of its digits is 2408448, while the sum is 51.

The square root of 7827422388 is about 88472.7211517765. The cubic root of 7827422388 is about 1985.5138615540.

The spelling of 7827422388 in words is "seven billion, eight hundred twenty-seven million, four hundred twenty-two thousand, three hundred eighty-eight".