11423040 has 112 divisors (see below), whose sum is σ = 36990528. Its totient is φ = 2985984.

The previous prime is 11423039. The next prime is 11423053. The reversal of 11423040 is 4032411.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69999 + ... + 70161.

Almost surely, 2^11423040 is an apocalyptic number.

11423040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11423040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18495264).

11423040 is an abundant number, since it is smaller than the sum of its proper divisors (25567488).

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

11423040 is a wasteful number, since it uses less digits than its factorization.

11423040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 11423040 is about 3379.7988105803. The cubic root of 11423040 is about 225.2132299593.

Adding to 11423040 its reverse (4032411), we get a palindrome (15455451).

The spelling of 11423040 in words is "eleven million, four hundred twenty-three thousand, forty".