1164280 has 32 divisors (see below), whose sum is σ = 2822400. Its totient is φ = 429696.

The previous prime is 1164253. The next prime is 1164287. The reversal of 1164280 is 824611.

1164280 = T₂₂₁ + T₂₂₂ + ... + T₂₆₀.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1164287) 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 in 7 ways as a sum of consecutive naturals, for example, 600 + ... + 1639.

It is an arithmetic number, because the mean of its divisors is an integer number (88200).

2^1164280 is an apocalyptic number.

1164280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1164280 is an abundant number, since it is smaller than the sum of its proper divisors (1658120).

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

1164280 is a wasteful number, since it uses less digits than its factorization.

1164280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2263 (or 2259 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1164280 is about 1079.0180721378. The cubic root of 1164280 is about 105.2008250259.

Adding to 1164280 its reverse (824611), we get a palindrome (1988891).

It can be divided in two parts, 1164 and 280, that added together give a square (1444 = 38²).

The spelling of 1164280 in words is "one million, one hundred sixty-four thousand, two hundred eighty".