29980866 has 16 divisors (see below), whose sum is σ = 60026688. Its totient is φ = 9982800.

The previous prime is 29980859. The next prime is 29980871. The reversal of 29980866 is 66808992.

It is a super-2 number, since 2×29980866² = 1797704652219912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4971 + ... + 9201.

It is an arithmetic number, because the mean of its divisors is an integer number (3751668).

Almost surely, 2^29980866 is an apocalyptic number.

29980866 is an abundant number, since it is smaller than the sum of its proper divisors (30045822).

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

29980866 is a wasteful number, since it uses less digits than its factorization.

29980866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5417.

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

The square root of 29980866 is about 5475.4786092176. The cubic root of 29980866 is about 310.6571767830.

The spelling of 29980866 in words is "twenty-nine million, nine hundred eighty thousand, eight hundred sixty-six".