1613935044 has 72 divisors (see below), whose sum is σ = 4240218528. Its totient is φ = 536777280.

The previous prime is 1613935033. The next prime is 1613935073. The reversal of 1613935044 is 4405393161.

1613935044 is a `hidden beast` number, since 1 + 61 + 3 + 93 + 504 + 4 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 504819 + ... + 508005.

It is an arithmetic number, because the mean of its divisors is an integer number (58891924).

Almost surely, 2^1613935044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1613935044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2120109264).

1613935044 is an abundant number, since it is smaller than the sum of its proper divisors (2626283484).

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

1613935044 is a wasteful number, since it uses less digits than its factorization.

1613935044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3727 (or 3713 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 1613935044 is about 40173.8104242055. The cubic root of 1613935044 is about 1172.9928113583.

The spelling of 1613935044 in words is "one billion, six hundred thirteen million, nine hundred thirty-five thousand, forty-four".