613685442 has 16 divisors (see below), whose sum is σ = 1235500992. Its totient is φ = 203206800.

The previous prime is 613685411. The next prime is 613685453. The reversal of 613685442 is 244586316.

It is a self number, because there is not a number n which added to its sum of digits gives 613685442.

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, 337773 + ... + 339584.

It is an arithmetic number, because the mean of its divisors is an integer number (77218812).

Almost surely, 2^613685442 is an apocalyptic number.

613685442 is an abundant number, since it is smaller than the sum of its proper divisors (621815550).

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

613685442 is a wasteful number, since it uses less digits than its factorization.

613685442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677513.

The product of its digits is 138240, while the sum is 39.

The square root of 613685442 is about 24772.6753097036. The cubic root of 613685442 is about 849.7971566725.

The spelling of 613685442 in words is "six hundred thirteen million, six hundred eighty-five thousand, four hundred forty-two".