613274740 has 48 divisors (see below), whose sum is σ = 1401300432. Its totient is φ = 224096256.

The previous prime is 613274671. The next prime is 613274747. The reversal of 613274740 is 47472316.

It can be written as a sum of positive squares in 8 ways, for example, as 23853456 + 589421284 = 4884^2 + 24278^2 .

It is a super-2 number, since 2×613274740² = 752211813444135200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 613274696 and 613274705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613274747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13062 + ... + 37378.

It is an arithmetic number, because the mean of its divisors is an integer number (29193759).

Almost surely, 2^613274740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 613274740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (700650216).

613274740 is an abundant number, since it is smaller than the sum of its proper divisors (788025692).

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

613274740 is a wasteful number, since it uses less digits than its factorization.

613274740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24436 (or 24434 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 613274740 is about 24764.3845067872. The cubic root of 613274740 is about 849.6075420074.

The spelling of 613274740 in words is "six hundred thirteen million, two hundred seventy-four thousand, seven hundred forty".