617719242 has 32 divisors (see below), whose sum is σ = 1494986112. Its totient is φ = 166109184.

The previous prime is 617719229. The next prime is 617719313. The reversal of 617719242 is 242917716.

It is a self number, because there is not a number n which added to its sum of digits gives 617719242.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 431863 + ... + 433290.

It is an arithmetic number, because the mean of its divisors is an integer number (46718316).

Almost surely, 2^617719242 is an apocalyptic number.

617719242 is an abundant number, since it is smaller than the sum of its proper divisors (877266870).

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

617719242 is a wasteful number, since it uses less digits than its factorization.

617719242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865182.

The product of its digits is 42336, while the sum is 39.

The square root of 617719242 is about 24853.9582762988. The cubic root of 617719242 is about 851.6550185910.

The spelling of 617719242 in words is "six hundred seventeen million, seven hundred nineteen thousand, two hundred forty-two".