29504020 has 144 divisors (see below), whose sum is σ = 81164160. Its totient is φ = 8805888.

The previous prime is 29504003. The next prime is 29504021. The reversal of 29504020 is 2040592.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 29503982 and 29504000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29504021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 686119 + ... + 686161.

It is an arithmetic number, because the mean of its divisors is an integer number (563640).

Almost surely, 2^29504020 is an apocalyptic number.

29504020 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 29504020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40582080).

29504020 is an abundant number, since it is smaller than the sum of its proper divisors (51660140).

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

29504020 is a wasteful number, since it uses less digits than its factorization.

29504020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 29504020 is about 5431.7603039899. The cubic root of 29504020 is about 309.0013650125.

The spelling of 29504020 in words is "twenty-nine million, five hundred four thousand, twenty".