613278456 has 64 divisors (see below), whose sum is σ = 1808762880. Its totient is φ = 169568640.

The previous prime is 613278443. The next prime is 613278461. The reversal of 613278456 is 654872316.

613278456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×613278456² = 752220929187487872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 53671 + ... + 64086.

It is an arithmetic number, because the mean of its divisors is an integer number (28261920).

Almost surely, 2^613278456 is an apocalyptic number.

It is an amenable number.

613278456 is an abundant number, since it is smaller than the sum of its proper divisors (1195484424).

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

613278456 is a wasteful number, since it uses less digits than its factorization.

613278456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117804 (or 117800 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 613278456 is about 24764.4595337754. The cubic root of 613278456 is about 849.6092580057.

The spelling of 613278456 in words is "six hundred thirteen million, two hundred seventy-eight thousand, four hundred fifty-six".