11420427 has 8 divisors (see below), whose sum is σ = 15598800. Its totient is φ = 7427840.

The previous prime is 11420417. The next prime is 11420429. The reversal of 11420427 is 72402411.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11420427 - 2⁶ = 11420363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11420429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46302 + ... + 46547.

It is an arithmetic number, because the mean of its divisors is an integer number (1949850).

Almost surely, 2^11420427 is an apocalyptic number.

11420427 is a deficient number, since it is larger than the sum of its proper divisors (4178373).

11420427 is an equidigital number, since it uses as much as digits as its factorization.

11420427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92893.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 11420427 is about 3379.4122270004. The cubic root of 11420427 is about 225.1960562750.

Adding to 11420427 its reverse (72402411), we get a palindrome (83822838).

The spelling of 11420427 in words is "eleven million, four hundred twenty thousand, four hundred twenty-seven".