2054440279 has 4 divisors (see below), whose sum is σ = 2054801560. Its totient is φ = 2054079000.

The previous prime is 2054440273. The next prime is 2054440321. The reversal of 2054440279 is 9720444502.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2054440279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2054440273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171972 + ... + 183529.

It is an arithmetic number, because the mean of its divisors is an integer number (513700390).

Almost surely, 2^2054440279 is an apocalyptic number.

2054440279 is a deficient number, since it is larger than the sum of its proper divisors (361281).

2054440279 is an equidigital number, since it uses as much as digits as its factorization.

2054440279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361280.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 2054440279 is about 45325.9338458680. The cubic root of 2054440279 is about 1271.2506082469.

The spelling of 2054440279 in words is "two billion, fifty-four million, four hundred forty thousand, two hundred seventy-nine".