1240402483 has 2 divisors, whose sum is σ = 1240402484. Its totient is φ = 1240402482.

The previous prime is 1240402481. The next prime is 1240402511. The reversal of 1240402483 is 3842040421.

It is a happy number.

It is an a-pointer prime, because the next prime (1240402511) can be obtained adding 1240402483 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1240402483 - 2¹ = 1240402481 is a prime.

Together with 1240402481, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1240402481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620201241 + 620201242.

It is an arithmetic number, because the mean of its divisors is an integer number (620201242).

Almost surely, 2^1240402483 is an apocalyptic number.

1240402483 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240402483 is an equidigital number, since it uses as much as digits as its factorization.

1240402483 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 1240402483 is about 35219.3481342287. The cubic root of 1240402483 is about 1074.4532956213.

The spelling of 1240402483 in words is "one billion, two hundred forty million, four hundred two thousand, four hundred eighty-three".