29986620 has 48 divisors (see below), whose sum is σ = 84284928. Its totient is φ = 7965760.

The previous prime is 29986577. The next prime is 29986631. The reversal of 29986620 is 2668992.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17857 + ... + 19463.

It is an arithmetic number, because the mean of its divisors is an integer number (1755936).

Almost surely, 2^29986620 is an apocalyptic number.

29986620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29986620 is an abundant number, since it is smaller than the sum of its proper divisors (54298308).

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

29986620 is a wasteful number, since it uses less digits than its factorization.

29986620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1930 (or 1928 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 29986620 is about 5476.0040175296. The cubic root of 29986620 is about 310.6770495362.

The spelling of 29986620 in words is "twenty-nine million, nine hundred eighty-six thousand, six hundred twenty".