29500020 has 144 divisors (see below), whose sum is σ = 100009728. Its totient is φ = 6977280.

The previous prime is 29499991. The next prime is 29500043. The reversal of 29500020 is 2000592.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 29499966 and 29500002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 92902 + ... + 93218.

It is an arithmetic number, because the mean of its divisors is an integer number (694512).

Almost surely, 2^29500020 is an apocalyptic number.

29500020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29500020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50004864).

29500020 is an abundant number, since it is smaller than the sum of its proper divisors (70509708).

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

29500020 is a wasteful number, since it uses less digits than its factorization.

29500020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 29500020 is about 5431.3920867490. The cubic root of 29500020 is about 308.9874001209.

The spelling of 29500020 in words is "twenty-nine million, five hundred thousand, twenty".