11400045 has 32 divisors (see below), whose sum is σ = 19180800. Its totient is φ = 5773824.

The previous prime is 11400043. The next prime is 11400071. The reversal of 11400045 is 54000411.

11400045 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11400045 - 2¹ = 11400043 is a prime.

It is a super-2 number, since 2×11400045² = 259922052004050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11399997 and 11400033.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11400043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31576 + ... + 31934.

It is an arithmetic number, because the mean of its divisors is an integer number (599400).

Almost surely, 2^11400045 is an apocalyptic number.

11400045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11400045 is a deficient number, since it is larger than the sum of its proper divisors (7780755).

11400045 is a wasteful number, since it uses less digits than its factorization.

11400045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 11400045 is about 3376.3952671451. The cubic root of 11400045 is about 225.0620076012.

Adding to 11400045 its reverse (54000411), we get a palindrome (65400456).

The spelling of 11400045 in words is "eleven million, four hundred thousand, forty-five".