254220401 has 4 divisors (see below), whose sum is σ = 257076900. Its totient is φ = 251363904.

The previous prime is 254220389. The next prime is 254220433. The reversal of 254220401 is 104022452.

It is a happy number.

254220401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 119683600 + 134536801 = 10940^2 + 11599^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254220401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254220101) 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, 1428116 + ... + 1428293.

It is an arithmetic number, because the mean of its divisors is an integer number (64269225).

Almost surely, 2^254220401 is an apocalyptic number.

It is an amenable number.

254220401 is a deficient number, since it is larger than the sum of its proper divisors (2856499).

254220401 is an equidigital number, since it uses as much as digits as its factorization.

254220401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2856498.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 254220401 is about 15944.2905455213. The cubic root of 254220401 is about 633.4856767100.

Adding to 254220401 its reverse (104022452), we get a palindrome (358242853).

The spelling of 254220401 in words is "two hundred fifty-four million, two hundred twenty thousand, four hundred one".