613043520 has 56 divisors (see below), whose sum is σ = 1946416224. Its totient is φ = 163478016.

The previous prime is 613043503. The next prime is 613043549. The reversal of 613043520 is 25340316.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318334 + ... + 320253.

Almost surely, 2^613043520 is an apocalyptic number.

613043520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

613043520 is an abundant number, since it is smaller than the sum of its proper divisors (1333372704).

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

613043520 is a wasteful number, since it uses less digits than its factorization.

613043520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638607 (or 638597 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 613043520 is about 24759.7156688036. The cubic root of 613043520 is about 849.5007541158.

Adding to 613043520 its reverse (25340316), we get a palindrome (638383836).

The spelling of 613043520 in words is "six hundred thirteen million, forty-three thousand, five hundred twenty".