11491430 has 16 divisors (see below), whose sum is σ = 21036240. Its totient is φ = 4518432.

The previous prime is 11491427. The next prime is 11491463. The reversal of 11491430 is 3419411.

It is a junction number, because it is equal to n+sod(n) for n = 11491396 and 11491405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9149 + ... + 10328.

It is an arithmetic number, because the mean of its divisors is an integer number (1314765).

Almost surely, 2^11491430 is an apocalyptic number.

11491430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11491430 is a deficient number, since it is larger than the sum of its proper divisors (9544810).

11491430 is a wasteful number, since it uses less digits than its factorization.

11491430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19543.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 11491430 is about 3389.9011785006. The cubic root of 11491430 is about 225.6617882121.

The spelling of 11491430 in words is "eleven million, four hundred ninety-one thousand, four hundred thirty".