1149834690 has 96 divisors (see below), whose sum is σ = 3138198336. Its totient is φ = 302875200.

The previous prime is 1149834667. The next prime is 1149834703. The reversal of 1149834690 is 964389411.

It is a super-2 number, since 2×1149834690² = 2644239628654792200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 47 ways as a sum of consecutive naturals, for example, 198840 + ... + 204540.

It is an arithmetic number, because the mean of its divisors is an integer number (32689566).

Almost surely, 2^1149834690 is an apocalyptic number.

1149834690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1149834690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1569099168).

1149834690 is an abundant number, since it is smaller than the sum of its proper divisors (1988363646).

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

1149834690 is an equidigital number, since it uses as much as digits as its factorization.

1149834690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5806 (or 5794 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 1149834690 is about 33909.2124650514. The cubic root of 1149834690 is about 1047.6393497341.

The spelling of 1149834690 in words is "one billion, one hundred forty-nine million, eight hundred thirty-four thousand, six hundred ninety".