11420040024 has 24 divisors (see below), whose sum is σ = 30929275260. Its totient is φ = 3806679984.

The previous prime is 11420039989. The next prime is 11420040029. The reversal of 11420040024 is 42004002411.

It is a tau number, because it is divible by the number of its divisors (24).

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 = 11420039979 and 11420040006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11420040029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79305762 + ... + 79305905.

Almost surely, 2^11420040024 is an apocalyptic number.

It is an amenable number.

11420040024 is an abundant number, since it is smaller than the sum of its proper divisors (19509235236).

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

11420040024 is a wasteful number, since it uses less digits than its factorization.

11420040024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158611679 (or 158611672 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 11420040024 its reverse (42004002411), we get a palindrome (53424042435).

It can be divided in two parts, 11 and 420040024, that multiplied together give a palindrome (4620440264).

The spelling of 11420040024 in words is "eleven billion, four hundred twenty million, forty thousand, twenty-four".