1149409458 has 54 divisors (see below), whose sum is σ = 2551357341. Its totient is φ = 373978800.

The previous prime is 1149409447. The next prime is 1149409483. The reversal of 1149409458 is 8549049411.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 778577409 + 370832049 = 27903^2 + 19257^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=23973.

It is a super-2 number, since 2×1149409458² = 2642284204279707528, which contains 22 as substring.

It is an unprimeable number.

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 in 26 ways as a sum of consecutive naturals, for example, 8774053 + ... + 8774183.

Almost surely, 2^1149409458 is an apocalyptic number.

1149409458 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1149409458 is an abundant number, since it is smaller than the sum of its proper divisors (1401947883).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1149409458 is an equidigital number, since it uses as much as digits as its factorization.

1149409458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 1149409458 is about 33902.9417307702. The cubic root of 1149409458 is about 1047.5101877748.

The spelling of 1149409458 in words is "one billion, one hundred forty-nine million, four hundred nine thousand, four hundred fifty-eight".