29965980 has 48 divisors (see below), whose sum is σ = 91534464. Its totient is φ = 7264320.

The previous prime is 29965973. The next prime is 29965981. The reversal of 29965980 is 8956992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29965981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22042 + ... + 23361.

It is an arithmetic number, because the mean of its divisors is an integer number (1906968).

Almost surely, 2^29965980 is an apocalyptic number.

29965980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29965980 is an abundant number, since it is smaller than the sum of its proper divisors (61568484).

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

29965980 is a wasteful number, since it uses less digits than its factorization.

29965980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45426 (or 45424 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 48.

The square root of 29965980 is about 5474.1191072172. The cubic root of 29965980 is about 310.6057527813.

The spelling of 29965980 in words is "twenty-nine million, nine hundred sixty-five thousand, nine hundred eighty".