20032401 has 4 divisors (see below), whose sum is σ = 26709872. Its totient is φ = 13354932.

The previous prime is 20032399. The next prime is 20032423. The reversal of 20032401 is 10423002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20032401 - 2¹ = 20032399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20032501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3338731 + ... + 3338736.

It is an arithmetic number, because the mean of its divisors is an integer number (6677468).

Almost surely, 2^20032401 is an apocalyptic number.

It is an amenable number.

20032401 is a deficient number, since it is larger than the sum of its proper divisors (6677471).

20032401 is an equidigital number, since it uses as much as digits as its factorization.

20032401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6677470.

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

The square root of 20032401 is about 4475.7570309390. The cubic root of 20032401 is about 271.5882656487.

Adding to 20032401 its reverse (10423002), we get a palindrome (30455403).

The spelling of 20032401 in words is "twenty million, thirty-two thousand, four hundred one".