613404620 has 12 divisors (see below), whose sum is σ = 1288149744. Its totient is φ = 245361840.

The previous prime is 613404577. The next prime is 613404647. The reversal of 613404620 is 26404316.

It is a self number, because there is not a number n which added to its sum of digits gives 613404620.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15335096 + ... + 15335135.

It is an arithmetic number, because the mean of its divisors is an integer number (107345812).

Almost surely, 2^613404620 is an apocalyptic number.

It is an amenable number.

613404620 is an abundant number, since it is smaller than the sum of its proper divisors (674745124).

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

613404620 is a wasteful number, since it uses less digits than its factorization.

613404620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30670240 (or 30670238 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 613404620 is about 24767.0066822779. The cubic root of 613404620 is about 849.6675147143.

Adding to 613404620 its reverse (26404316), we get a palindrome (639808936).

The spelling of 613404620 in words is "six hundred thirteen million, four hundred four thousand, six hundred twenty".