11400426 has 20 divisors (see below), whose sum is σ = 25545762. Its totient is φ = 3800088.

The previous prime is 11400407. The next prime is 11400427. The reversal of 11400426 is 62400411.

It can be written as a sum of positive squares in only one way, i.e., 11390625 + 9801 = 3375^2 + 99^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11400399 and 11400408.

It is not an unprimeable number, because it can be changed into a prime (11400427) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 35025 + ... + 35348.

Almost surely, 2^11400426 is an apocalyptic number.

11400426 is an abundant number, since it is smaller than the sum of its proper divisors (14145336).

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

11400426 is an equidigital number, since it uses as much as digits as its factorization.

11400426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70387 (or 70378 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 11400426 is about 3376.4516877930. The cubic root of 11400426 is about 225.0645148331.

Adding to 11400426 its reverse (62400411), we get a palindrome (73800837).

The spelling of 11400426 in words is "eleven million, four hundred thousand, four hundred twenty-six".