11909494 has 8 divisors (see below), whose sum is σ = 17894448. Its totient is φ = 5944680.

The previous prime is 11909483. The next prime is 11909507. The reversal of 11909494 is 49490911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 3457 + ... + 5980.

It is an arithmetic number, because the mean of its divisors is an integer number (2236806).

Almost surely, 2^11909494 is an apocalyptic number.

11909494 is a deficient number, since it is larger than the sum of its proper divisors (5984954).

11909494 is an equidigital number, since it uses as much as digits as its factorization.

11909494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10070.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 11909494 is about 3451.0134743290. The cubic root of 11909494 is about 228.3658203490.

It can be divided in two parts, 11909 and 494, that added together give a triangular number (12403 = T₁₅₇).

The spelling of 11909494 in words is "eleven million, nine hundred nine thousand, four hundred ninety-four".