1954441279 has 8 divisors (see below), whose sum is σ = 2281171968. Its totient is φ = 1639591800.

The previous prime is 1954441249. The next prime is 1954441301. The reversal of 1954441279 is 9721444591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1954441279 - 2²³ = 1946052671 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 (1954441219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2969947 + ... + 2970604.

It is an arithmetic number, because the mean of its divisors is an integer number (285146496).

Almost surely, 2^1954441279 is an apocalyptic number.

1954441279 is a deficient number, since it is larger than the sum of its proper divisors (326730689).

1954441279 is an equidigital number, since it uses as much as digits as its factorization.

1954441279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5940605.

The product of its digits is 362880, while the sum is 46.

The square root of 1954441279 is about 44209.0633128548. The cubic root of 1954441279 is about 1250.2807431286.

The spelling of 1954441279 in words is "one billion, nine hundred fifty-four million, four hundred forty-one thousand, two hundred seventy-nine".