20346150 has 144 divisors (see below), whose sum is σ = 59371200. Its totient is φ = 4593600.

The previous prime is 20346121. The next prime is 20346187. The reversal of 20346150 is 5164302.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 344821 + ... + 344879.

It is an arithmetic number, because the mean of its divisors is an integer number (412300).

Almost surely, 2^20346150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20346150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29685600).

20346150 is an abundant number, since it is smaller than the sum of its proper divisors (39025050).

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

20346150 is a wasteful number, since it uses less digits than its factorization.

20346150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 20346150 is about 4510.6706818388. The cubic root of 20346150 is about 272.9988058287.

The spelling of 20346150 in words is "twenty million, three hundred forty-six thousand, one hundred fifty".