2240453987 has 4 divisors (see below), whose sum is σ = 2372245416. Its totient is φ = 2108662560.

The previous prime is 2240453981. The next prime is 2240454067. The reversal of 2240453987 is 7893540422.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2240453987 - 2¹² = 2240449891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2240453981) 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, 65895689 + ... + 65895722.

It is an arithmetic number, because the mean of its divisors is an integer number (593061354).

Almost surely, 2^2240453987 is an apocalyptic number.

2240453987 is a deficient number, since it is larger than the sum of its proper divisors (131791429).

2240453987 is a wasteful number, since it uses less digits than its factorization.

2240453987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131791428.

The product of its (nonzero) digits is 483840, while the sum is 44.

The square root of 2240453987 is about 47333.4341348692. The cubic root of 2240453987 is about 1308.5149122461.

The spelling of 2240453987 in words is "two billion, two hundred forty million, four hundred fifty-three thousand, nine hundred eighty-seven".