613407520 has 48 divisors (see below), whose sum is σ = 1580923008. Its totient is φ = 223056640.

The previous prime is 613407517. The next prime is 613407541. The reversal of 613407520 is 25704316.

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, 172504 + ... + 176023.

It is an arithmetic number, because the mean of its divisors is an integer number (32935896).

Almost surely, 2^613407520 is an apocalyptic number.

It is an amenable number.

613407520 is an abundant number, since it is smaller than the sum of its proper divisors (967515488).

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

613407520 is a wasteful number, since it uses less digits than its factorization.

613407520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348553 (or 348545 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 613407520 is about 24767.0652278384. The cubic root of 613407520 is about 849.6688537065.

The spelling of 613407520 in words is "six hundred thirteen million, four hundred seven thousand, five hundred twenty".