11229642 has 12 divisors (see below), whose sum is σ = 24330930. Its totient is φ = 3743208.

The previous prime is 11229637. The next prime is 11229649. The reversal of 11229642 is 24692211.

11229642 is a `hidden beast` number, since 1 + 12 + 2 + 9 + 642 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11229201 + 441 = 3351^2 + 21^2 .

It is a super-2 number, since 2×11229642² = 252209718896328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11229649) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 311917 + ... + 311952.

Almost surely, 2^11229642 is an apocalyptic number.

11229642 is an abundant number, since it is smaller than the sum of its proper divisors (13101288).

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

11229642 is a wasteful number, since it uses less digits than its factorization.

11229642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623877 (or 623874 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 11229642 is about 3351.0658006073. The cubic root of 11229642 is about 223.9349965506.

The spelling of 11229642 in words is "eleven million, two hundred twenty-nine thousand, six hundred forty-two".