1240245022 has 4 divisors (see below), whose sum is σ = 1860367536. Its totient is φ = 620122510.

The previous prime is 1240244987. The next prime is 1240245037. The reversal of 1240245022 is 2205420421.

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

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1240244984 and 1240245002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310061254 + ... + 310061257.

It is an arithmetic number, because the mean of its divisors is an integer number (465091884).

Almost surely, 2^1240245022 is an apocalyptic number.

1240245022 is a deficient number, since it is larger than the sum of its proper divisors (620122514).

1240245022 is an equidigital number, since it uses as much as digits as its factorization.

1240245022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620122513.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 1240245022 is about 35217.1126300837. The cubic root of 1240245022 is about 1074.4078287528.

Adding to 1240245022 its reverse (2205420421), we get a palindrome (3445665443).

The spelling of 1240245022 in words is "one billion, two hundred forty million, two hundred forty-five thousand, twenty-two".