613405442 has 12 divisors (see below), whose sum is σ = 996330690. Its totient is φ = 283110048.

The previous prime is 613405439. The next prime is 613405451. The reversal of 613405442 is 244504316.

It can be written as a sum of positive squares in 3 ways, for example, as 517972081 + 95433361 = 22759^2 + 9769^2 .

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 5 ways as a sum of consecutive naturals, for example, 907067 + ... + 907742.

Almost surely, 2^613405442 is an apocalyptic number.

613405442 is a deficient number, since it is larger than the sum of its proper divisors (382925248).

613405442 is a wasteful number, since it uses less digits than its factorization.

613405442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814837 (or 1814824 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 613405442 is about 24767.0232769302. The cubic root of 613405442 is about 849.6678942498.

Adding to 613405442 its reverse (244504316), we get a palindrome (857909758).

The spelling of 613405442 in words is "six hundred thirteen million, four hundred five thousand, four hundred forty-two".