1054944439 has 4 divisors (see below), whose sum is σ = 1055658240. Its totient is φ = 1054230640.

The previous prime is 1054944421. The next prime is 1054944479. The reversal of 1054944439 is 9344494501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9344494501 = 53 ⋅176311217.

It is a cyclic number.

It is not a de Polignac number, because 1054944439 - 2⁹ = 1054943927 is a prime.

It is a super-2 number, since 2×1054944439² = 2225815538754049442, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1054944395 and 1054944404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1054944479) 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, 354679 + ... + 357640.

It is an arithmetic number, because the mean of its divisors is an integer number (263914560).

Almost surely, 2^1054944439 is an apocalyptic number.

1054944439 is a deficient number, since it is larger than the sum of its proper divisors (713801).

1054944439 is an equidigital number, since it uses as much as digits as its factorization.

1054944439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713800.

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 1054944439 is about 32479.9082357078. The cubic root of 1054944439 is about 1017.9892590373.

The spelling of 1054944439 in words is "one billion, fifty-four million, nine hundred forty-four thousand, four hundred thirty-nine".