11400078 has 16 divisors (see below), whose sum is σ = 22902480. Its totient is φ = 3782976.

The previous prime is 11400071. The next prime is 11400097. The reversal of 11400078 is 87000411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11400071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2775 + ... + 5522.

It is an arithmetic number, because the mean of its divisors is an integer number (1431405).

Almost surely, 2^11400078 is an apocalyptic number.

11400078 is an abundant number, since it is smaller than the sum of its proper divisors (11502402).

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

11400078 is a wasteful number, since it uses less digits than its factorization.

11400078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8531.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 11400078 is about 3376.4001540102. The cubic root of 11400078 is about 225.0622247652.

Adding to 11400078 its reverse (87000411), we get a palindrome (98400489).

The spelling of 11400078 in words is "eleven million, four hundred thousand, seventy-eight".