2028144401 has 2 divisors, whose sum is σ = 2028144402. Its totient is φ = 2028144400.

The previous prime is 2028144383. The next prime is 2028144457. The reversal of 2028144401 is 1044418202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1014358801 + 1013785600 = 31849^2 + 31840^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2028144401 is a prime.

It is a super-2 number, since 2×2028144401² = 8226739422615297602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2028144901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1014072200 + 1014072201.

It is an arithmetic number, because the mean of its divisors is an integer number (1014072201).

Almost surely, 2^2028144401 is an apocalyptic number.

It is an amenable number.

2028144401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2028144401 is an equidigital number, since it uses as much as digits as its factorization.

2028144401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 2028144401 is about 45034.9242366411. The cubic root of 2028144401 is about 1265.8034964675.

The spelling of 2028144401 in words is "two billion, twenty-eight million, one hundred forty-four thousand, four hundred one".