11420078 has 4 divisors (see below), whose sum is σ = 17130120. Its totient is φ = 5710038.

The previous prime is 11420077. The next prime is 11420089. The reversal of 11420078 is 87002411.

11420078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87002411 = 1399 ⋅62189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11420077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2855018 + ... + 2855021.

It is an arithmetic number, because the mean of its divisors is an integer number (4282530).

Almost surely, 2^11420078 is an apocalyptic number.

11420078 is a deficient number, since it is larger than the sum of its proper divisors (5710042).

11420078 is an equidigital number, since it uses as much as digits as its factorization.

11420078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5710041.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 11420078 is about 3379.3605904076. The cubic root of 11420078 is about 225.1937623087.

Adding to 11420078 its reverse (87002411), we get a palindrome (98422489).

The spelling of 11420078 in words is "eleven million, four hundred twenty thousand, seventy-eight".