1149660 has 48 divisors (see below), whose sum is σ = 3578400. Its totient is φ = 306432.

The previous prime is 1149641. The next prime is 1149661. The reversal of 1149660 is 669411.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 525 + ... + 1604.

It is an arithmetic number, because the mean of its divisors is an integer number (74550).

2^1149660 is an apocalyptic number.

1149660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1149660 is an abundant number, since it is smaller than the sum of its proper divisors (2428740).

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

1149660 is a wasteful number, since it uses less digits than its factorization.

1149660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147 (or 2139 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1149660 is about 1072.2219919401. The cubic root of 1149660 is about 104.7586292430.

Subtracting from 1149660 its reverse (669411), we obtain a square (480249 = 693²).

The spelling of 1149660 in words is "one million, one hundred forty-nine thousand, six hundred sixty".