29998930 has 16 divisors (see below), whose sum is σ = 58152024. Its totient is φ = 11076480.

The previous prime is 29998909. The next prime is 29998937. The reversal of 29998930 is 3989992.

It can be written as a sum of positive squares in 4 ways, for example, as 27279729 + 2719201 = 5223^2 + 1649^2 .

It is a super-3 number, since 3×29998930³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (29998937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115251 + ... + 115510.

Almost surely, 2^29998930 is an apocalyptic number.

29998930 is a deficient number, since it is larger than the sum of its proper divisors (28153094).

29998930 is a wasteful number, since it uses less digits than its factorization.

29998930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230781.

The product of its (nonzero) digits is 314928, while the sum is 49.

The square root of 29998930 is about 5477.1278969913. The cubic root of 29998930 is about 310.7195563973.

The spelling of 29998930 in words is "twenty-nine million, nine hundred ninety-eight thousand, nine hundred thirty".