11950640 has 40 divisors (see below), whose sum is σ = 29925168. Its totient is φ = 4412160.

The previous prime is 11950637. The next prime is 11950661. The reversal of 11950640 is 4605911.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (26).

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 7 ways as a sum of consecutive naturals, for example, 4706 + ... + 6785.

Almost surely, 2^11950640 is an apocalyptic number.

11950640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11950640 is an abundant number, since it is smaller than the sum of its proper divisors (17974528).

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

11950640 is a wasteful number, since it uses less digits than its factorization.

11950640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11517 (or 11511 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 11950640 is about 3456.9697713460. The cubic root of 11950640 is about 228.6285110409.

The spelling of 11950640 in words is "eleven million, nine hundred fifty thousand, six hundred forty".