29923980 has 24 divisors (see below), whose sum is σ = 83787312. Its totient is φ = 7979712.

The previous prime is 29923979. The next prime is 29923981. The reversal of 29923980 is 8932992.

It is an interprime number because it is at equal distance from previous prime (29923979) and next prime (29923981).

It is not an unprimeable number, because it can be changed into a prime (29923981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249307 + ... + 249426.

It is an arithmetic number, because the mean of its divisors is an integer number (3491138).

Almost surely, 2^29923980 is an apocalyptic number.

29923980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29923980 is an abundant number, since it is smaller than the sum of its proper divisors (53863332).

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

29923980 is a wasteful number, since it uses less digits than its factorization.

29923980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498745 (or 498743 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 29923980 is about 5470.2815284042. The cubic root of 29923980 is about 310.4605710213.

It can be divided in two parts, 29923 and 980, that added together give a palindrome (30903).

The spelling of 29923980 in words is "twenty-nine million, nine hundred twenty-three thousand, nine hundred eighty".