2540446401 has 4 divisors (see below), whose sum is σ = 3387261872. Its totient is φ = 1693630932.

The previous prime is 2540446379. The next prime is 2540446423. The reversal of 2540446401 is 1046440452.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2540446379) and next prime (2540446423).

It is not a de Polignac number, because 2540446401 - 2⁵ = 2540446369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2540446481) 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, 423407731 + ... + 423407736.

It is an arithmetic number, because the mean of its divisors is an integer number (846815468).

Almost surely, 2^2540446401 is an apocalyptic number.

It is an amenable number.

2540446401 is a deficient number, since it is larger than the sum of its proper divisors (846815471).

2540446401 is an equidigital number, since it uses as much as digits as its factorization.

2540446401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846815470.

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 2540446401 is about 50402.8411996784. The cubic root of 2540446401 is about 1364.4889159909.

Adding to 2540446401 its reverse (1046440452), we get a palindrome (3586886853).

The spelling of 2540446401 in words is "two billion, five hundred forty million, four hundred forty-six thousand, four hundred one".