1613857630 has 48 divisors (see below), whose sum is σ = 3686434416. Its totient is φ = 503018880.

The previous prime is 1613857607. The next prime is 1613857643. The reversal of 1613857630 is 367583161.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144319 + ... + 155098.

It is an arithmetic number, because the mean of its divisors is an integer number (76800717).

Almost surely, 2^1613857630 is an apocalyptic number.

1613857630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1613857630 is an abundant number, since it is smaller than the sum of its proper divisors (2072576786).

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

1613857630 is a wasteful number, since it uses less digits than its factorization.

1613857630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299449 (or 299442 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 1613857630 is about 40172.8469242597. The cubic root of 1613857630 is about 1172.9740564694.

The spelling of 1613857630 in words is "one billion, six hundred thirteen million, eight hundred fifty-seven thousand, six hundred thirty".