717042132 has 30 divisors (see below), whose sum is σ = 1874490618. Its totient is φ = 239013936.

The previous prime is 717042119. The next prime is 717042143. The reversal of 717042132 is 231240717.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 453434436 + 263607696 = 21294^2 + 16236^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 717042096 and 717042105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1106223 + ... + 1106870.

Almost surely, 2^717042132 is an apocalyptic number.

It is an amenable number.

717042132 is an abundant number, since it is smaller than the sum of its proper divisors (1157448486).

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

717042132 is a wasteful number, since it uses less digits than its factorization.

717042132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213109 (or 2213098 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 717042132 is about 26777.6423906213. The cubic root of 717042132 is about 895.0519125554.

Adding to 717042132 its reverse (231240717), we get a palindrome (948282849).

The spelling of 717042132 in words is "seven hundred seventeen million, forty-two thousand, one hundred thirty-two".