613406242 has 8 divisors (see below), whose sum is σ = 920337516. Its totient is φ = 306627072.

The previous prime is 613406201. The next prime is 613406281. The reversal of 613406242 is 242604316.

It can be written as a sum of positive squares in 2 ways, for example, as 613008081 + 398161 = 24759^2 + 631^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 613406242.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27343 + ... + 44434.

Almost surely, 2^613406242 is an apocalyptic number.

613406242 is a deficient number, since it is larger than the sum of its proper divisors (306931274).

613406242 is a wasteful number, since it uses less digits than its factorization.

613406242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76052.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 613406242 is about 24767.0394274326. The cubic root of 613406242 is about 849.6682636270.

The spelling of 613406242 in words is "six hundred thirteen million, four hundred six thousand, two hundred forty-two".