30140212244 has 6 divisors (see below), whose sum is σ = 52745371434. Its totient is φ = 15070106120.

The previous prime is 30140212159. The next prime is 30140212309. The reversal of 30140212244 is 44221204103.

It can be written as a sum of positive squares in only one way, i.e., 28760089744 + 1380122500 = 169588^2 + 37150^2 .

It is a super-2 number, since 2×30140212244² (a number of 22 digits) contains 22 as substring.

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, 3767526527 + ... + 3767526534.

It is an arithmetic number, because the mean of its divisors is an integer number (8790895239).

Almost surely, 2^30140212244 is an apocalyptic number.

It is an amenable number.

30140212244 is a deficient number, since it is larger than the sum of its proper divisors (22605159190).

30140212244 is a wasteful number, since it uses less digits than its factorization.

30140212244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7535053065 (or 7535053063 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 30140212244 its reverse (44221204103), we get a palindrome (74361416347).

The spelling of 30140212244 in words is "thirty billion, one hundred forty million, two hundred twelve thousand, two hundred forty-four".