538814401 has 4 divisors (see below), whose sum is σ = 540653652. Its totient is φ = 536975152.

The previous prime is 538814389. The next prime is 538814413. The reversal of 538814401 is 104418835.

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

It is an interprime number because it is at equal distance from previous prime (538814389) and next prime (538814413).

It can be written as a sum of positive squares in 2 ways, for example, as 222010000 + 316804401 = 14900^2 + 17799^2 .

It is a cyclic number.

It is not a de Polignac number, because 538814401 - 2⁷ = 538814273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538814431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 919186 + ... + 919771.

It is an arithmetic number, because the mean of its divisors is an integer number (135163413).

Almost surely, 2^538814401 is an apocalyptic number.

It is an amenable number.

538814401 is a deficient number, since it is larger than the sum of its proper divisors (1839251).

538814401 is a wasteful number, since it uses less digits than its factorization.

538814401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839250.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 538814401 is about 23212.3760309021. The cubic root of 538814401 is about 813.7288833228.

The spelling of 538814401 in words is "five hundred thirty-eight million, eight hundred fourteen thousand, four hundred one".