30234404541520 has 80 divisors (see below), whose sum is σ = 70442707159440. Its totient is φ = 12068365824000.

The previous prime is 30234404541463. The next prime is 30234404541521. The reversal of 30234404541520 is 2514540443203.

It can be written as a sum of positive squares in 8 ways, for example, as 10626582904336 + 19607821637184 = 3259844^2 + 4428072^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 30234404541520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30234404541521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110880550 + ... + 111152890.

It is an arithmetic number, because the mean of its divisors is an integer number (880533839493).

Almost surely, 2^{30234404541520} is an apocalyptic number.

It is an amenable number.

30234404541520 is an abundant number, since it is smaller than the sum of its proper divisors (40208302617920).

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

30234404541520 is a wasteful number, since it uses less digits than its factorization.

30234404541520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275264 (or 275258 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 30234404541520 its reverse (2514540443203), we get a palindrome (32748944984723).

The spelling of 30234404541520 in words is "thirty trillion, two hundred thirty-four billion, four hundred four million, five hundred forty-one thousand, five hundred twenty".