29340220 has 120 divisors (see below), whose sum is σ = 79055424. Its totient is φ = 9088128.

The previous prime is 29340211. The next prime is 29340221. The reversal of 29340220 is 2204392.

It is a junction number, because it is equal to n+sod(n) for n = 29340191 and 29340200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29340221) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 624237 + ... + 624283.

Almost surely, 2^29340220 is an apocalyptic number.

29340220 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 29340220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39527712).

29340220 is an abundant number, since it is smaller than the sum of its proper divisors (49715204).

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

29340220 is a wasteful number, since it uses less digits than its factorization.

29340220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 29340220 is about 5416.6613333307. The cubic root of 29340220 is about 308.4284670325.

The spelling of 29340220 in words is "twenty-nine million, three hundred forty thousand, two hundred twenty".