613655240 has 32 divisors (see below), whose sum is σ = 1506245760. Its totient is φ = 223147200.

The previous prime is 613655233. The next prime is 613655269. The reversal of 613655240 is 42556316.

It is a junction number, because it is equal to n+sod(n) for n = 613655197 and 613655206.

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, 696896 + ... + 697775.

It is an arithmetic number, because the mean of its divisors is an integer number (47070180).

Almost surely, 2^613655240 is an apocalyptic number.

It is an amenable number.

613655240 is an abundant number, since it is smaller than the sum of its proper divisors (892590520).

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

613655240 is a wasteful number, since it uses less digits than its factorization.

613655240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394693 (or 1394689 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 613655240 is about 24772.0657192734. The cubic root of 613655240 is about 849.7832157656.

The spelling of 613655240 in words is "six hundred thirteen million, six hundred fifty-five thousand, two hundred forty".