20238141 has 32 divisors (see below), whose sum is σ = 34099200. Its totient is φ = 10370880.

The previous prime is 20238131. The next prime is 20238151. The reversal of 20238141 is 14183202.

It is an interprime number because it is at equal distance from previous prime (20238131) and next prime (20238151).

It is not a de Polignac number, because 20238141 - 2⁹ = 20237629 is a prime.

It is a super-2 number, since 2×20238141² = 819164702271762, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20238131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17695 + ... + 18803.

It is an arithmetic number, because the mean of its divisors is an integer number (1065600).

Almost surely, 2^20238141 is an apocalyptic number.

20238141 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20238141 is a deficient number, since it is larger than the sum of its proper divisors (13861059).

20238141 is a wasteful number, since it uses less digits than its factorization.

20238141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209.

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

The square root of 20238141 is about 4498.6821403607. The cubic root of 20238141 is about 272.5148705517.

The spelling of 20238141 in words is "twenty million, two hundred thirty-eight thousand, one hundred forty-one".