1165925340 has 120 divisors (see below), whose sum is σ = 3708030480. Its totient is φ = 306623232.

The previous prime is 1165925281. The next prime is 1165925351. The reversal of 1165925340 is 435295611.

1165925340 is a `hidden beast` number, since 1 + 16 + 592 + 53 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1165925295 and 1165925304.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 113331 + ... + 123189.

It is an arithmetic number, because the mean of its divisors is an integer number (30900254).

Almost surely, 2^1165925340 is an apocalyptic number.

1165925340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1165925340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1854015240).

1165925340 is an abundant number, since it is smaller than the sum of its proper divisors (2542105140).

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

1165925340 is a wasteful number, since it uses less digits than its factorization.

1165925340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9953 (or 9942 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 1165925340 is about 34145.6489175415. The cubic root of 1165925340 is about 1052.5035768502.

The spelling of 1165925340 in words is "one billion, one hundred sixty-five million, nine hundred twenty-five thousand, three hundred forty".