20150688 has 48 divisors (see below), whose sum is σ = 53585280. Its totient is φ = 6629376.

The previous prime is 20150687. The next prime is 20150693. The reversal of 20150688 is 88605102.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (20150687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6256 + ... + 8912.

It is an arithmetic number, because the mean of its divisors is an integer number (1116360).

Almost surely, 2^20150688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20150688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26792640).

20150688 is an abundant number, since it is smaller than the sum of its proper divisors (33434592).

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

20150688 is a wasteful number, since it uses less digits than its factorization.

20150688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2749 (or 2741 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 20150688 is about 4488.9517707367. The cubic root of 20150688 is about 272.1217736172.

The spelling of 20150688 in words is "twenty million, one hundred fifty thousand, six hundred eighty-eight".