20023401 has 8 divisors (see below), whose sum is σ = 27419584. Its totient is φ = 12988080.

The previous prime is 20023391. The next prime is 20023403. The reversal of 20023401 is 10432002.

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

It is not a de Polignac number, because 20023401 - 2⁷ = 20023273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20023403) 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, 90085 + ... + 90306.

It is an arithmetic number, because the mean of its divisors is an integer number (3427448).

Almost surely, 2^20023401 is an apocalyptic number.

It is an amenable number.

20023401 is a deficient number, since it is larger than the sum of its proper divisors (7396183).

20023401 is a wasteful number, since it uses less digits than its factorization.

20023401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180431.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 20023401 is about 4474.7515014803. The cubic root of 20023401 is about 271.5475872076.

Adding to 20023401 its reverse (10432002), we get a palindrome (30455403).

The spelling of 20023401 in words is "twenty million, twenty-three thousand, four hundred one".