11464640 has 56 divisors (see below), whose sum is σ = 29791152. Its totient is φ = 4167680.

The previous prime is 11464631. The next prime is 11464643. The reversal of 11464640 is 4646411.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11464643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1892 + ... + 5148.

Almost surely, 2^11464640 is an apocalyptic number.

11464640 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 11464640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14895576).

11464640 is an abundant number, since it is smaller than the sum of its proper divisors (18326512).

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

11464640 is a wasteful number, since it uses less digits than its factorization.

11464640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3285 (or 3275 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 11464640 is about 3385.9474301885. The cubic root of 11464640 is about 225.4862897943.

It can be divided in two parts, 1 and 1464640, that added together give a palindrome (1464641).

The spelling of 11464640 in words is "eleven million, four hundred sixty-four thousand, six hundred forty".