7421822500 has 45 divisors (see below), whose sum is σ = 16239466551. Its totient is φ = 2967006000.

The previous prime is 7421822479. The next prime is 7421822531. The reversal of 7421822500 is 52281247.

It is a happy number.

The square root of 7421822500 is 86150.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 581870884 + 6839951616 = 24122^2 + 82704^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 4306639 + ... + 4308361.

Almost surely, 2^7421822500 is an apocalyptic number.

7421822500 is the 86150-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7421822500

7421822500 is an abundant number, since it is smaller than the sum of its proper divisors (8817644051).

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

7421822500 is an frugal number, since it uses more digits than its factorization.

7421822500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3470 (or 1730 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The cubic root of 7421822500 is about 1950.6088390329.

It can be divided in two parts, 7421 and 822500, that added together give a square (829921 = 911²).

The spelling of 7421822500 in words is "seven billion, four hundred twenty-one million, eight hundred twenty-two thousand, five hundred".