29940390648 has 48 divisors (see below), whose sum is σ = 92672639280. Its totient is φ = 8554397184.

The previous prime is 29940390629. The next prime is 29940390661. The reversal of 29940390648 is 84609304992.

29940390648 is a `hidden beast` number, since 2 + 99 + 403 + 90 + 64 + 8 = 666.

It is a super-3 number, since 3×29940390648³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 29940390594 and 29940390603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29702265 + ... + 29703272.

It is an arithmetic number, because the mean of its divisors is an integer number (1930679985).

Almost surely, 2^29940390648 is an apocalyptic number.

29940390648 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

29940390648 is an abundant number, since it is smaller than the sum of its proper divisors (62732248632).

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

29940390648 is a wasteful number, since it uses less digits than its factorization.

29940390648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59405556 (or 59405549 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The spelling of 29940390648 in words is "twenty-nine billion, nine hundred forty million, three hundred ninety thousand, six hundred forty-eight".