30440023412 has 6 divisors (see below), whose sum is σ = 53270040978. Its totient is φ = 15220011704.

The previous prime is 30440023399. The next prime is 30440023457. The reversal of 30440023412 is 21432004403.

It can be written as a sum of positive squares in only one way, i.e., 24905258596 + 5534764816 = 157814^2 + 74396^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3805002923 + ... + 3805002930.

It is an arithmetic number, because the mean of its divisors is an integer number (8878340163).

Almost surely, 2^30440023412 is an apocalyptic number.

It is an amenable number.

30440023412 is a deficient number, since it is larger than the sum of its proper divisors (22830017566).

30440023412 is a wasteful number, since it uses less digits than its factorization.

30440023412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7610005857 (or 7610005855 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 30440023412 its reverse (21432004403), we get a palindrome (51872027815).

The spelling of 30440023412 in words is "thirty billion, four hundred forty million, twenty-three thousand, four hundred twelve".