30442431340 has 12 divisors (see below), whose sum is σ = 63929105856. Its totient is φ = 12176972528.

The previous prime is 30442431289. The next prime is 30442431359. The reversal of 30442431340 is 4313424403.

It is a super-2 number, since 2×30442431340² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30442431299 and 30442431308.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 761060764 + ... + 761060803.

It is an arithmetic number, because the mean of its divisors is an integer number (5327425488).

Almost surely, 2^30442431340 is an apocalyptic number.

It is an amenable number.

30442431340 is an abundant number, since it is smaller than the sum of its proper divisors (33486674516).

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

30442431340 is a wasteful number, since it uses less digits than its factorization.

30442431340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522121576 (or 1522121574 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 30442431340 its reverse (4313424403), we get a palindrome (34755855743).

The spelling of 30442431340 in words is "thirty billion, four hundred forty-two million, four hundred thirty-one thousand, three hundred forty".