29686980 has 24 divisors (see below), whose sum is σ = 83123712. Its totient is φ = 7916512.

The previous prime is 29686967. The next prime is 29686999. The reversal of 29686980 is 8968692.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247332 + ... + 247451.

It is an arithmetic number, because the mean of its divisors is an integer number (3463488).

Almost surely, 2^29686980 is an apocalyptic number.

29686980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29686980 is an abundant number, since it is smaller than the sum of its proper divisors (53436732).

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

29686980 is a wasteful number, since it uses less digits than its factorization.

29686980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494795 (or 494793 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 29686980 is about 5448.5759607442. The cubic root of 29686980 is about 309.6387745306.

The spelling of 29686980 in words is "twenty-nine million, six hundred eighty-six thousand, nine hundred eighty".