2215795420 has 24 divisors (see below), whose sum is σ = 4654170864. Its totient is φ = 886127616.

The previous prime is 2215795411. The next prime is 2215795427. The reversal of 2215795420 is 245975122.

It is a self number, because there is not a number n which added to its sum of digits gives 2215795420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215795427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117999 + ... + 135481.

It is an arithmetic number, because the mean of its divisors is an integer number (193923786).

Almost surely, 2^2215795420 is an apocalyptic number.

2215795420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2215795420 is an abundant number, since it is smaller than the sum of its proper divisors (2438375444).

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

2215795420 is a wasteful number, since it uses less digits than its factorization.

2215795420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23829 (or 23827 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 2215795420 is about 47072.2361907739. The cubic root of 2215795420 is about 1303.6966616931.

The spelling of 2215795420 in words is "two billion, two hundred fifteen million, seven hundred ninety-five thousand, four hundred twenty".