1402240247 has 2 divisors, whose sum is σ = 1402240248. Its totient is φ = 1402240246.

The previous prime is 1402240237. The next prime is 1402240331. The reversal of 1402240247 is 7420422041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1402240247 - 2⁶ = 1402240183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1402240237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701120123 + 701120124.

It is an arithmetic number, because the mean of its divisors is an integer number (701120124).

Almost surely, 2^1402240247 is an apocalyptic number.

1402240247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1402240247 is an equidigital number, since it uses as much as digits as its factorization.

1402240247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 26.

The square root of 1402240247 is about 37446.4984611379. The cubic root of 1402240247 is about 1119.2853239810.

Adding to 1402240247 its reverse (7420422041), we get a palindrome (8822662288).

The spelling of 1402240247 in words is "one billion, four hundred two million, two hundred forty thousand, two hundred forty-seven".