20328141 has 8 divisors (see below), whose sum is σ = 28698624. Its totient is φ = 12754880.

The previous prime is 20328137. The next prime is 20328149. The reversal of 20328141 is 14182302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20328141 - 2² = 20328137 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20328149) 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, 199245 + ... + 199346.

It is an arithmetic number, because the mean of its divisors is an integer number (3587328).

Almost surely, 2^20328141 is an apocalyptic number.

It is an amenable number.

20328141 is a deficient number, since it is larger than the sum of its proper divisors (8370483).

20328141 is a wasteful number, since it uses less digits than its factorization.

20328141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398611.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 20328141 is about 4508.6739735758. The cubic root of 20328141 is about 272.9182355199.

The spelling of 20328141 in words is "twenty million, three hundred twenty-eight thousand, one hundred forty-one".