20146401 has 24 divisors (see below), whose sum is σ = 32925984. Its totient is φ = 12208320.

The previous prime is 20146393. The next prime is 20146417. The reversal of 20146401 is 10464102.

20146401 is a `hidden beast` number, since 20 + 1 + 4 + 640 + 1 = 666.

It is not a de Polignac number, because 20146401 - 2³ = 20146393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20146421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1096 + ... + 6441.

It is an arithmetic number, because the mean of its divisors is an integer number (1371916).

Almost surely, 2^20146401 is an apocalyptic number.

It is an amenable number.

20146401 is a deficient number, since it is larger than the sum of its proper divisors (12779583).

20146401 is an equidigital number, since it uses as much as digits as its factorization.

20146401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7563 (or 7551 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 20146401 is about 4488.4742396498. The cubic root of 20146401 is about 272.1024745444.

The spelling of 20146401 in words is "twenty million, one hundred forty-six thousand, four hundred one".