1165659340 has 24 divisors (see below), whose sum is σ = 2467164672. Its totient is φ = 462591360.

The previous prime is 1165659323. The next prime is 1165659347. The reversal of 1165659340 is 439565611.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1165659293 and 1165659302.

It is not an unprimeable number, because it can be changed into a prime (1165659347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226921 + ... + 232000.

It is an arithmetic number, because the mean of its divisors is an integer number (102798528).

Almost surely, 2^1165659340 is an apocalyptic number.

1165659340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1165659340 is an abundant number, since it is smaller than the sum of its proper divisors (1301505332).

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

1165659340 is a wasteful number, since it uses less digits than its factorization.

1165659340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459057 (or 459055 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 1165659340 is about 34141.7536163566. The cubic root of 1165659340 is about 1052.4235296307.

The spelling of 1165659340 in words is "one billion, one hundred sixty-five million, six hundred fifty-nine thousand, three hundred forty".