29979530 has 32 divisors (see below), whose sum is σ = 64920960. Its totient is φ = 9737280.

The previous prime is 29979529. The next prime is 29979539. The reversal of 29979530 is 3597992.

It is not an unprimeable number, because it can be changed into a prime (29979539) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9941 + ... + 12600.

It is an arithmetic number, because the mean of its divisors is an integer number (2028780).

Almost surely, 2^29979530 is an apocalyptic number.

29979530 is an abundant number, since it is smaller than the sum of its proper divisors (34941430).

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

29979530 is a wasteful number, since it uses less digits than its factorization.

29979530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22574.

The product of its (nonzero) digits is 153090, while the sum is 44.

The square root of 29979530 is about 5475.3566093908. The cubic root of 29979530 is about 310.6525622382.

The spelling of 29979530 in words is "twenty-nine million, nine hundred seventy-nine thousand, five hundred thirty".