305405244553020 has 48 divisors (see below), whose sum is σ = 873329039751168. Its totient is φ = 79708602832960.

The previous prime is 305405244552983. The next prime is 305405244553049. The reversal of 305405244553020 is 20355442504503.

It is a super-2 number, since 2×305405244553020² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54149863236 + ... + 54149868875.

It is an arithmetic number, because the mean of its divisors is an integer number (18194354994816).

Almost surely, 2^{305405244553020} is an apocalyptic number.

305405244553020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

305405244553020 is an abundant number, since it is smaller than the sum of its proper divisors (567923795198148).

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

305405244553020 is a wasteful number, since it uses less digits than its factorization.

305405244553020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108299732170 (or 108299732168 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 42.

The spelling of 305405244553020 in words is "three hundred five trillion, four hundred five billion, two hundred forty-four million, five hundred fifty-three thousand, twenty".