10991342 has 16 divisors (see below), whose sum is σ = 16811520. Its totient is φ = 5388768.

The previous prime is 10991339. The next prime is 10991347. The reversal of 10991342 is 24319901.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10991347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27488 + ... + 27884.

It is an arithmetic number, because the mean of its divisors is an integer number (1050720).

Almost surely, 2^10991342 is an apocalyptic number.

10991342 is a deficient number, since it is larger than the sum of its proper divisors (5820178).

10991342 is a wasteful number, since it uses less digits than its factorization.

10991342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 10991342 is about 3315.3192908074. The cubic root of 10991342 is about 222.3396445912.

The spelling of 10991342 in words is "ten million, nine hundred ninety-one thousand, three hundred forty-two".