11450640 has 40 divisors (see below), whose sum is σ = 35497728. Its totient is φ = 3053440.

The previous prime is 11450591. The next prime is 11450669. The reversal of 11450640 is 4605411.

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

It is a super-2 number, since 2×11450640² = 262234312819200, which contains 22 as substring.

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, 23616 + ... + 24095.

Almost surely, 2^11450640 is an apocalyptic number.

11450640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11450640 is an abundant number, since it is smaller than the sum of its proper divisors (24047088).

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

11450640 is a wasteful number, since it uses less digits than its factorization.

11450640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47727 (or 47721 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 11450640 is about 3383.8794304762. The cubic root of 11450640 is about 225.3944685101.

It can be divided in two parts, 11450 and 640, that added together give a triangular number (12090 = T₁₅₅).

The spelling of 11450640 in words is "eleven million, four hundred fifty thousand, six hundred forty".