11645634 has 96 divisors (see below), whose sum is σ = 31945536. Its totient is φ = 2782080.

The previous prime is 11645611. The next prime is 11645671. The reversal of 11645634 is 43654611.

Its product of digits (8640) is a multiple of the sum of its prime factors (320).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41904 + ... + 42180.

It is an arithmetic number, because the mean of its divisors is an integer number (332766).

Almost surely, 2^11645634 is an apocalyptic number.

11645634 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11645634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15972768).

11645634 is an abundant number, since it is smaller than the sum of its proper divisors (20299902).

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

11645634 is a wasteful number, since it uses less digits than its factorization.

11645634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320 (or 313 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 11645634 is about 3412.5699992821. The cubic root of 11645634 is about 226.6666950211. Note that the first 4 decimals are identical.

The spelling of 11645634 in words is "eleven million, six hundred forty-five thousand, six hundred thirty-four".