613942128 has 60 divisors (see below), whose sum is σ = 1792898640. Its totient is φ = 195748608.

The previous prime is 613942123. The next prime is 613942171. The reversal of 613942128 is 821249316.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 613942092 and 613942101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613942123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89373 + ... + 95996.

It is an arithmetic number, because the mean of its divisors is an integer number (29881644).

Almost surely, 2^613942128 is an apocalyptic number.

It is an amenable number.

613942128 is an abundant number, since it is smaller than the sum of its proper divisors (1178956512).

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

613942128 is a wasteful number, since it uses less digits than its factorization.

613942128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185406 (or 185397 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 613942128 is about 24777.8555972869. The cubic root of 613942128 is about 849.9156216126.

The spelling of 613942128 in words is "six hundred thirteen million, nine hundred forty-two thousand, one hundred twenty-eight".