1056989349 has 12 divisors (see below), whose sum is σ = 1644205836. Its totient is φ = 650454912.

The previous prime is 1056989327. The next prime is 1056989369. The reversal of 1056989349 is 9439896501.

It can be written as a sum of positive squares in 2 ways, for example, as 651168324 + 405821025 = 25518^2 + 20145^2 .

It is not a de Polignac number, because 1056989349 - 2²³ = 1048600741 is a prime.

It is a super-2 number, since 2×1056989349² = 2234452967798887602, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1056989295 and 1056989304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056989369) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4516932 + ... + 4517165.

It is an arithmetic number, because the mean of its divisors is an integer number (137017153).

Almost surely, 2^1056989349 is an apocalyptic number.

It is an amenable number.

1056989349 is a deficient number, since it is larger than the sum of its proper divisors (587216487).

1056989349 is a wasteful number, since it uses less digits than its factorization.

1056989349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9034116 (or 9034113 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The square root of 1056989349 is about 32511.3726102113. The cubic root of 1056989349 is about 1018.6465931199.

The spelling of 1056989349 in words is "one billion, fifty-six million, nine hundred eighty-nine thousand, three hundred forty-nine".