2240253021 has 4 divisors (see below), whose sum is σ = 2987004032. Its totient is φ = 1493502012.

The previous prime is 2240253017. The next prime is 2240253031. The reversal of 2240253021 is 1203520422.

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 not a de Polignac number, because 2240253021 - 2² = 2240253017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240253031) 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, 373375501 + ... + 373375506.

It is an arithmetic number, because the mean of its divisors is an integer number (746751008).

Almost surely, 2^2240253021 is an apocalyptic number.

It is an amenable number.

2240253021 is a deficient number, since it is larger than the sum of its proper divisors (746751011).

2240253021 is an equidigital number, since it uses as much as digits as its factorization.

2240253021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746751010.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 2240253021 is about 47331.3112115014. The cubic root of 2240253021 is about 1308.4757870105.

Adding to 2240253021 its reverse (1203520422), we get a palindrome (3443773443).

The spelling of 2240253021 in words is "two billion, two hundred forty million, two hundred fifty-three thousand, twenty-one".