7220404799 has 4 divisors (see below), whose sum is σ = 7221996600. Its totient is φ = 7218813000.

The previous prime is 7220404783. The next prime is 7220404823. The reversal of 7220404799 is 9974040227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9974040227 = 33053 ⋅301759.

It is a cyclic number.

It is not a de Polignac number, because 7220404799 - 2⁴ = 7220404783 is a prime.

It is a super-2 number, since 2×7220404799² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7220404769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 789077 + ... + 798174.

It is an arithmetic number, because the mean of its divisors is an integer number (1805499150).

Almost surely, 2^7220404799 is an apocalyptic number.

7220404799 is a deficient number, since it is larger than the sum of its proper divisors (1591801).

7220404799 is a wasteful number, since it uses less digits than its factorization.

7220404799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591800.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 7220404799 is about 84972.9651065561. The cubic root of 7220404799 is about 1932.8011799113.

The spelling of 7220404799 in words is "seven billion, two hundred twenty million, four hundred four thousand, seven hundred ninety-nine".