11640022 has 4 divisors (see below), whose sum is σ = 17460036. Its totient is φ = 5820010.

The previous prime is 11640007. The next prime is 11640061. The reversal of 11640022 is 22004611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22004611 = 103 ⋅213637.

It is a super-2 number, since 2×11640022² = 270980224320968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11639978 and 11640005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2910004 + ... + 2910007.

It is an arithmetic number, because the mean of its divisors is an integer number (4365009).

Almost surely, 2^11640022 is an apocalyptic number.

11640022 is a deficient number, since it is larger than the sum of its proper divisors (5820014).

11640022 is an equidigital number, since it uses as much as digits as its factorization.

11640022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5820013.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 11640022 is about 3411.7476460020. The cubic root of 11640022 is about 226.6302791455.

Adding to 11640022 its reverse (22004611), we get a palindrome (33644633).

The spelling of 11640022 in words is "eleven million, six hundred forty thousand, twenty-two".