22240491287 has 16 divisors (see below), whose sum is σ = 27408057600. Its totient is φ = 17619456960.

The previous prime is 22240491271. The next prime is 22240491367. The reversal of 22240491287 is 78219404222.

It is not a de Polignac number, because 22240491287 - 2⁴ = 22240491271 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22240491257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2033837 + ... + 2044742.

It is an arithmetic number, because the mean of its divisors is an integer number (1713003600).

Almost surely, 2^22240491287 is an apocalyptic number.

22240491287 is a deficient number, since it is larger than the sum of its proper divisors (5167566313).

22240491287 is a wasteful number, since it uses less digits than its factorization.

22240491287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4078646.

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 22240491287 in words is "twenty-two billion, two hundred forty million, four hundred ninety-one thousand, two hundred eighty-seven".