7222489440 has 384 divisors, whose sum is σ = 26022850560. Its totient is φ = 1672839168.

The previous prime is 7222489433. The next prime is 7222489447. The reversal of 7222489440 is 449842227.

It is an interprime number because it is at equal distance from previous prime (7222489433) and next prime (7222489447).

It is a junction number, because it is equal to n+sod(n) for n = 7222489392 and 7222489401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7222489447) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5442057 + ... + 5443383.

It is an arithmetic number, because the mean of its divisors is an integer number (67767840).

Almost surely, 2^7222489440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7222489440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13011425280).

7222489440 is an abundant number, since it is smaller than the sum of its proper divisors (18800361120).

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

7222489440 is a wasteful number, since it uses less digits than its factorization.

7222489440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414 (or 1406 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The square root of 7222489440 is about 84985.2307168722. The cubic root of 7222489440 is about 1932.9871717403.

The spelling of 7222489440 in words is "seven billion, two hundred twenty-two million, four hundred eighty-nine thousand, four hundred forty".