1149800 has 24 divisors (see below), whose sum is σ = 2673750. Its totient is φ = 459840.

The previous prime is 1149779. The next prime is 1149803. The reversal of 1149800 is 89411.

1149800 = T₄₁ + T₄₂ + ... + T₁₉₀.

It can be written as a sum of positive squares in 3 ways, for example, as 487204 + 662596 = 698^2 + 814^2 .

It is not an unprimeable number, because it can be changed into a prime (1149803) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2675 + ... + 3074.

2^1149800 is an apocalyptic number.

1149800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1149800 is an abundant number, since it is smaller than the sum of its proper divisors (1523950).

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

1149800 is a wasteful number, since it uses less digits than its factorization.

1149800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5765 (or 5756 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1149800 is about 1072.2872749408. The cubic root of 1149800 is about 104.7628814024.

The spelling of 1149800 in words is "one million, one hundred forty-nine thousand, eight hundred".