11840280444 has 36 divisors (see below), whose sum is σ = 30063831616. Its totient is φ = 3929059008.

The previous prime is 11840280409. The next prime is 11840280449. The reversal of 11840280444 is 44408204811.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 11840280399 and 11840280408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11840280449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 729409 + ... + 745464.

Almost surely, 2^11840280444 is an apocalyptic number.

It is an amenable number.

11840280444 is an abundant number, since it is smaller than the sum of its proper divisors (18223551172).

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

11840280444 is a wasteful number, since it uses less digits than its factorization.

11840280444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475106 (or 1475101 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 36.

The spelling of 11840280444 in words is "eleven billion, eight hundred forty million, two hundred eighty thousand, four hundred forty-four".