1129448 has 8 divisors (see below), whose sum is σ = 2117730. Its totient is φ = 564720.

The previous prime is 1129441. The next prime is 1129459. The reversal of 1129448 is 8449211.

It can be written as a sum of positive squares in only one way, i.e., 813604 + 315844 = 902^2 + 562^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1129448.

It is not an unprimeable number, because it can be changed into a prime (1129441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70583 + ... + 70598.

2^1129448 is an apocalyptic number.

It is an amenable number.

1129448 is a deficient number, since it is larger than the sum of its proper divisors (988282).

1129448 is a wasteful number, since it uses less digits than its factorization.

1129448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141187 (or 141183 counting only the distinct ones).

The product of its digits is 2304, while the sum is 29.

The square root of 1129448 is about 1062.7549105979. The cubic root of 1129448 is about 104.1410807204.

The spelling of 1129448 in words is "one million, one hundred twenty-nine thousand, four hundred forty-eight".