29859420 has 48 divisors (see below), whose sum is σ = 84405888. Its totient is φ = 7886400.

The previous prime is 29859419. The next prime is 29859437. The reversal of 29859420 is 2495892.

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, 4095 + ... + 8745.

It is an arithmetic number, because the mean of its divisors is an integer number (1758456).

Almost surely, 2^29859420 is an apocalyptic number.

29859420 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 29859420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42202944).

29859420 is an abundant number, since it is smaller than the sum of its proper divisors (54546468).

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

29859420 is a wasteful number, since it uses less digits than its factorization.

29859420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4770 (or 4768 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 29859420 is about 5464.3773661781. The cubic root of 29859420 is about 310.2371407819.

The spelling of 29859420 in words is "twenty-nine million, eight hundred fifty-nine thousand, four hundred twenty".