29913992 has 8 divisors (see below), whose sum is σ = 56088750. Its totient is φ = 14956992.

The previous prime is 29913991. The next prime is 29913997. The reversal of 29913992 is 29931992.

It can be written as a sum of positive squares in only one way, i.e., 20016676 + 9897316 = 4474^2 + 3146^2 .

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

It is not an unprimeable number, because it can be changed into a prime (29913991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1869617 + ... + 1869632.

Almost surely, 2^29913992 is an apocalyptic number.

It is an amenable number.

29913992 is a deficient number, since it is larger than the sum of its proper divisors (26174758).

29913992 is a wasteful number, since it uses less digits than its factorization.

29913992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3739255 (or 3739251 counting only the distinct ones).

The product of its digits is 78732, while the sum is 44.

The square root of 29913992 is about 5469.3685193082. The cubic root of 29913992 is about 310.4260254244.

The spelling of 29913992 in words is "twenty-nine million, nine hundred thirteen thousand, nine hundred ninety-two".