306155200330040 has 32 divisors (see below), whose sum is σ = 692345897210880. Its totient is φ = 121840445204352.

The previous prime is 306155200329989. The next prime is 306155200330051. The reversal of 306155200330040 is 40033002551603.

It is a junction number, because it is equal to n+sod(n) for n = 306155200329979 and 306155200330006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19426083512 + ... + 19426099271.

It is an arithmetic number, because the mean of its divisors is an integer number (21635809287840).

Almost surely, 2^{306155200330040} is an apocalyptic number.

It is an amenable number.

306155200330040 is an abundant number, since it is smaller than the sum of its proper divisors (386190696880840).

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

306155200330040 is a wasteful number, since it uses less digits than its factorization.

306155200330040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38852182991 (or 38852182987 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 32.

Adding to 306155200330040 its reverse (40033002551603), we get a palindrome (346188202881643).

The spelling of 306155200330040 in words is "three hundred six trillion, one hundred fifty-five billion, two hundred million, three hundred thirty thousand, forty".