30440340520000 has 70 divisors (see below), whose sum is σ = 75482151478118. Its totient is φ = 12176136192000.

The previous prime is 30440340519989. The next prime is 30440340520043. The reversal of 30440340520000 is 2504304403.

It can be written as a sum of positive squares in 5 ways, for example, as 2649055718464 + 27791284801536 = 1627592^2 + 5271744^2 .

It is a super-2 number, since 2×30440340520000² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 380464257 + ... + 380544256.

Almost surely, 2^{30440340520000} is an apocalyptic number.

It is an amenable number.

30440340520000 is an abundant number, since it is smaller than the sum of its proper divisors (45041810958118).

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

30440340520000 is an frugal number, since it uses more digits than its factorization.

30440340520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761008545 (or 761008520 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 30440340520000 its reverse (2504304403), we get a palindrome (30442844824403).

The spelling of 30440340520000 in words is "thirty trillion, four hundred forty billion, three hundred forty million, five hundred twenty thousand".