30229725928 has 8 divisors (see below), whose sum is σ = 56680736130. Its totient is φ = 15114862960.

The previous prime is 30229725893. The next prime is 30229725989. The reversal of 30229725928 is 82952792203.

It can be written as a sum of positive squares in only one way, i.e., 21521476804 + 8708249124 = 146702^2 + 93318^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×30229725928² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1889357863 + ... + 1889357878.

Almost surely, 2^30229725928 is an apocalyptic number.

It is an amenable number.

30229725928 is a deficient number, since it is larger than the sum of its proper divisors (26451010202).

30229725928 is a wasteful number, since it uses less digits than its factorization.

30229725928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3778715747 (or 3778715743 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 30229725928 in words is "thirty billion, two hundred twenty-nine million, seven hundred twenty-five thousand, nine hundred twenty-eight".