11764640 has 24 divisors (see below), whose sum is σ = 27794340. Its totient is φ = 4705792.

The previous prime is 11764609. The next prime is 11764651. The reversal of 11764640 is 4646711.

It can be written as a sum of positive squares in 2 ways, for example, as 11751184 + 13456 = 3428^2 + 116^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36605 + ... + 36924.

Almost surely, 2^11764640 is an apocalyptic number.

11764640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11764640 is an abundant number, since it is smaller than the sum of its proper divisors (16029700).

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

11764640 is an equidigital number, since it uses as much as digits as its factorization.

11764640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73544 (or 73536 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 11764640 is about 3429.9620989160. The cubic root of 11764640 is about 227.4361774035.

The spelling of 11764640 in words is "eleven million, seven hundred sixty-four thousand, six hundred forty".