20602401 has 4 divisors (see below), whose sum is σ = 27469872. Its totient is φ = 13734932.

The previous prime is 20602357. The next prime is 20602409. The reversal of 20602401 is 10420602.

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 a cyclic number.

It is not a de Polignac number, because 20602401 - 2¹⁴ = 20586017 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20602409) 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, 3433731 + ... + 3433736.

It is an arithmetic number, because the mean of its divisors is an integer number (6867468).

Almost surely, 2^20602401 is an apocalyptic number.

It is an amenable number.

20602401 is a deficient number, since it is larger than the sum of its proper divisors (6867471).

20602401 is an equidigital number, since it uses as much as digits as its factorization.

20602401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6867470.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 20602401 is about 4538.9867812101. The cubic root of 20602401 is about 274.1401284763.

The spelling of 20602401 in words is "twenty million, six hundred two thousand, four hundred one".