29975980 has 12 divisors (see below), whose sum is σ = 62949600. Its totient is φ = 11990384.

The previous prime is 29975971. The next prime is 29975983. The reversal of 29975980 is 8957992.

It is not an unprimeable number, because it can be changed into a prime (29975983) 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 3 ways as a sum of consecutive naturals, for example, 749380 + ... + 749419.

It is an arithmetic number, because the mean of its divisors is an integer number (5245800).

Almost surely, 2^29975980 is an apocalyptic number.

29975980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29975980 is an abundant number, since it is smaller than the sum of its proper divisors (32973620).

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

29975980 is a wasteful number, since it uses less digits than its factorization.

29975980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498808 (or 1498806 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 49.

The square root of 29975980 is about 5475.0324199953. The cubic root of 29975980 is about 310.6402998697.

The spelling of 29975980 in words is "twenty-nine million, nine hundred seventy-five thousand, nine hundred eighty".