1828454401 has 4 divisors (see below), whose sum is σ = 1837928452. Its totient is φ = 1818980352.

The previous prime is 1828454389. The next prime is 1828454461. The reversal of 1828454401 is 1044548281.

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 974938176 + 853516225 = 31224^2 + 29215^2 .

It is a cyclic number.

It is not a de Polignac number, because 1828454401 - 2⁹ = 1828453889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1828454461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4736736 + ... + 4737121.

It is an arithmetic number, because the mean of its divisors is an integer number (459482113).

It is a Proth number, since it is equal to 6975 ⋅ 2¹⁸ + 1 and 6975 < 2¹⁸.

Almost surely, 2^1828454401 is an apocalyptic number.

It is an amenable number.

1828454401 is a deficient number, since it is larger than the sum of its proper divisors (9474051).

1828454401 is an equidigital number, since it uses as much as digits as its factorization.

1828454401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9474050.

The product of its (nonzero) digits is 40960, while the sum is 37.

The square root of 1828454401 is about 42760.4303182276. The cubic root of 1828454401 is about 1222.8167472841.

The spelling of 1828454401 in words is "one billion, eight hundred twenty-eight million, four hundred fifty-four thousand, four hundred one".