305052220355420 has 96 divisors (see below), whose sum is σ = 659163309053760. Its totient is φ = 118546499174400.

The previous prime is 305052220355411. The next prime is 305052220355423. The reversal of 305052220355420 is 24553022250503.

It is a super-2 number, since 2×305052220355420² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305052220355423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30397226 + ... + 39167534.

It is an arithmetic number, because the mean of its divisors is an integer number (6866284469310).

Almost surely, 2^{305052220355420} is an apocalyptic number.

It is an amenable number.

305052220355420 is an abundant number, since it is smaller than the sum of its proper divisors (354111088698340).

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

305052220355420 is a wasteful number, since it uses less digits than its factorization.

305052220355420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8770743 (or 8770741 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 38.

The spelling of 305052220355420 in words is "three hundred five trillion, fifty-two billion, two hundred twenty million, three hundred fifty-five thousand, four hundred twenty".