2240134021 has 4 divisors (see below), whose sum is σ = 2240344512. Its totient is φ = 2239923532.

The previous prime is 2240134019. The next prime is 2240134027. The reversal of 2240134021 is 1204310422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2240134021 - 2¹ = 2240134019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2240134021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240134027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88381 + ... + 110866.

It is an arithmetic number, because the mean of its divisors is an integer number (560086128).

Almost surely, 2^2240134021 is an apocalyptic number.

It is an amenable number.

2240134021 is a deficient number, since it is larger than the sum of its proper divisors (210491).

2240134021 is a wasteful number, since it uses less digits than its factorization.

2240134021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210490.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2240134021 is about 47330.0540988493. The cubic root of 2240134021 is about 1308.4526182918.

Adding to 2240134021 its reverse (1204310422), we get a palindrome (3444444443).

The spelling of 2240134021 in words is "two billion, two hundred forty million, one hundred thirty-four thousand, twenty-one".