11042890 has 8 divisors (see below), whose sum is σ = 19877220. Its totient is φ = 4417152.

The previous prime is 11042887. The next prime is 11042893. The reversal of 11042890 is 9824011.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11042887) and next prime (11042893).

It can be written as a sum of positive squares in 2 ways, for example, as 11002489 + 40401 = 3317^2 + 201^2 .

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

It is not an unprimeable number, because it can be changed into a prime (11042893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552135 + ... + 552154.

Almost surely, 2^11042890 is an apocalyptic number.

11042890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11042890 is a deficient number, since it is larger than the sum of its proper divisors (8834330).

11042890 is a wasteful number, since it uses less digits than its factorization.

11042890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104296.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 11042890 is about 3323.0844106041. The cubic root of 11042890 is about 222.6866842096.

The spelling of 11042890 in words is "eleven million, forty-two thousand, eight hundred ninety".