613361040 has 160 divisors (see below), whose sum is σ = 2066534400. Its totient is φ = 149921280.

The previous prime is 613361027. The next prime is 613361041. The reversal of 613361040 is 40163316.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 613361040.

It is not an unprimeable number, because it can be changed into a prime (613361041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139191 + ... + 143529.

It is an arithmetic number, because the mean of its divisors is an integer number (12915840).

Almost surely, 2^613361040 is an apocalyptic number.

613361040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 613361040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1033267200).

613361040 is an abundant number, since it is smaller than the sum of its proper divisors (1453173360).

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

613361040 is a wasteful number, since it uses less digits than its factorization.

613361040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4405 (or 4399 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 613361040 is about 24766.1268671547. The cubic root of 613361040 is about 849.6473923861.

The spelling of 613361040 in words is "six hundred thirteen million, three hundred sixty-one thousand, forty".