717440142 has 16 divisors (see below), whose sum is σ = 1435507200. Its totient is φ = 239042232.

The previous prime is 717440123. The next prime is 717440153. The reversal of 717440142 is 241044717.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10528 + ... + 39315.

It is an arithmetic number, because the mean of its divisors is an integer number (89719200).

Almost surely, 2^717440142 is an apocalyptic number.

717440142 is an abundant number, since it is smaller than the sum of its proper divisors (718067058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

717440142 is a wasteful number, since it uses less digits than its factorization.

717440142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52247.

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 717440142 is about 26785.0731191834. The cubic root of 717440142 is about 895.2174880045.

Adding to 717440142 its reverse (241044717), we get a palindrome (958484859).

The spelling of 717440142 in words is "seven hundred seventeen million, four hundred forty thousand, one hundred forty-two".