1190338665 has 32 divisors (see below), whose sum is σ = 1991678976. Its totient is φ = 605922240.

The previous prime is 1190338663. The next prime is 1190338679. The reversal of 1190338665 is 5668330911.

It is a happy number.

It is not a de Polignac number, because 1190338665 - 2¹ = 1190338663 is a prime.

It is a super-2 number, since 2×1190338665² = 2833812274787964450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1190338661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165882 + ... + 172908.

It is an arithmetic number, because the mean of its divisors is an integer number (62239968).

Almost surely, 2^1190338665 is an apocalyptic number.

1190338665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1190338665 is a deficient number, since it is larger than the sum of its proper divisors (801340311).

1190338665 is a wasteful number, since it uses less digits than its factorization.

1190338665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7549.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 1190338665 is about 34501.2849760701. The cubic root of 1190338665 is about 1059.7990199829.

The spelling of 1190338665 in words is "one billion, one hundred ninety million, three hundred thirty-eight thousand, six hundred sixty-five".