29693980 has 24 divisors (see below), whose sum is σ = 64044288. Its totient is φ = 11556288.

The previous prime is 29693977. The next prime is 29693987. The reversal of 29693980 is 8939692.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 29693980.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29693987) 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, 19324 + ... + 20803.

It is an arithmetic number, because the mean of its divisors is an integer number (2668512).

Almost surely, 2^29693980 is an apocalyptic number.

29693980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29693980 is an abundant number, since it is smaller than the sum of its proper divisors (34350308).

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

29693980 is a wasteful number, since it uses less digits than its factorization.

29693980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40173 (or 40171 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 29693980 is about 5449.2182925627. The cubic root of 29693980 is about 309.6631095655.

The spelling of 29693980 in words is "twenty-nine million, six hundred ninety-three thousand, nine hundred eighty".