11652640 has 48 divisors (see below), whose sum is σ = 27965952. Its totient is φ = 4587264.

The previous prime is 11652623. The next prime is 11652653. The reversal of 11652640 is 4625611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10177 + ... + 11263.

It is an arithmetic number, because the mean of its divisors is an integer number (582624).

Almost surely, 2^11652640 is an apocalyptic number.

11652640 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 11652640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13982976).

11652640 is an abundant number, since it is smaller than the sum of its proper divisors (16313312).

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

11652640 is a wasteful number, since it uses less digits than its factorization.

11652640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169 (or 1161 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 11652640 is about 3413.5963440337. The cubic root of 11652640 is about 226.7121400500.

The spelling of 11652640 in words is "eleven million, six hundred fifty-two thousand, six hundred forty".