11400442 has 4 divisors (see below), whose sum is σ = 17100666. Its totient is φ = 5700220.

The previous prime is 11400439. The next prime is 11400443. The reversal of 11400442 is 24400411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6105841 + 5294601 = 2471^2 + 2301^2 .

It is not an unprimeable number, because it can be changed into a prime (11400443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2850109 + ... + 2850112.

Almost surely, 2^11400442 is an apocalyptic number.

11400442 is a deficient number, since it is larger than the sum of its proper divisors (5700224).

11400442 is an equidigital number, since it uses as much as digits as its factorization.

11400442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5700223.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 11400442 is about 3376.4540571434. The cubic root of 11400442 is about 225.0646201224.

Adding to 11400442 its reverse (24400411), we get a palindrome (35800853).

The spelling of 11400442 in words is "eleven million, four hundred thousand, four hundred forty-two".