613903320 has 256 divisors, whose sum is σ = 2243376000. Its totient is φ = 148635648.

The previous prime is 613903289. The next prime is 613903321. The reversal of 613903320 is 23309316.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613903321) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 531864 + ... + 533016.

Almost surely, 2^613903320 is an apocalyptic number.

613903320 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 613903320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1121688000).

613903320 is an abundant number, since it is smaller than the sum of its proper divisors (1629472680).

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

613903320 is a wasteful number, since it uses less digits than its factorization.

613903320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219 (or 1209 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The square root of 613903320 is about 24777.0724662943. The cubic root of 613903320 is about 849.8977131818.

The spelling of 613903320 in words is "six hundred thirteen million, nine hundred three thousand, three hundred twenty".