11645434 has 4 divisors (see below), whose sum is σ = 17468154. Its totient is φ = 5822716.

The previous prime is 11645419. The next prime is 11645437. The reversal of 11645434 is 43454611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43454611 = 5653 ⋅7687.

It can be written as a sum of positive squares in only one way, i.e., 11580409 + 65025 = 3403^2 + 255^2 .

It is a super-2 number, since 2×11645434² = 271232266096712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11645437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2911357 + ... + 2911360.

Almost surely, 2^11645434 is an apocalyptic number.

11645434 is a deficient number, since it is larger than the sum of its proper divisors (5822720).

11645434 is an equidigital number, since it uses as much as digits as its factorization.

11645434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5822719.

The product of its digits is 5760, while the sum is 28.

The square root of 11645434 is about 3412.5406957280. The cubic root of 11645434 is about 226.6653974362.

The spelling of 11645434 in words is "eleven million, six hundred forty-five thousand, four hundred thirty-four".