2227720536 has 32 divisors (see below), whose sum is σ = 6188113200. Its totient is φ = 742573440.

The previous prime is 2227720513. The next prime is 2227720559. The reversal of 2227720536 is 6350277222.

It is an interprime number because it is at equal distance from previous prime (2227720513) and next prime (2227720559).

It is a super-2 number, since 2×2227720536² = 9925477573032254592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2227720536.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5156545 + ... + 5156976.

Almost surely, 2^2227720536 is an apocalyptic number.

It is an amenable number.

2227720536 is an abundant number, since it is smaller than the sum of its proper divisors (3960392664).

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

2227720536 is a wasteful number, since it uses less digits than its factorization.

2227720536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10313536 (or 10313526 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 2227720536 is about 47198.7344745598. The cubic root of 2227720536 is about 1306.0312525012.

Adding to 2227720536 its reverse (6350277222), we get a palindrome (8577997758).

The spelling of 2227720536 in words is "two billion, two hundred twenty-seven million, seven hundred twenty thousand, five hundred thirty-six".